Carl Philipp Gottlieb von Clausewitz (ˈklaʊzəvɪts) (July 1, 1780 – November 16, 1831) was a Prussian soldier, military historian and influential military theorist. He is most famous for his military treatise Vom Kriege (complete German text available here), translated into English as On War (available here).
Clausewitz was born in Burg bei Magdeburg, Kingdom of Prussia, to a poor but middle-class family. His grandfather, the son of a Lutheran Pastor, had been a professor of theology. Clausewitz's father was once a lieutenant in the Prussian army and held a minor post in the Prussian internal revenue service. Carl was the fourth and youngest son. He entered the Prussian military service at the age of twelve years as a Lance-Corporal, eventually attaining the rank of Major-General.
Clausewitz served in the Rhine Campaigns (1793–1794) e.g. the Siege of Mainz, when the Prussian army invaded France during the French Revolution, and later served in the Napoleonic Wars from 1806 to 1815. Clausewitz entered the Kriegsakademie in Berlin (also cited variously as "The German War School," the "Military Academy in Berlin," and the "Prussian Military Academy") in 1801 (age 21 years), studied the philosopher Kant and won the regard of General Gerhard von Scharnhorst, the future first chief of staff of the new Prussian Army (appointed 1809). Clausewitz, along with Hermann von Boyen (1771–1848) and Karl von Grolman (1777–1843), were Scharnhorst's primary allies in his efforts to reform the Prussian army, between 1807 and 1814.
Both Clausewitz and Hermann von Boyen served during the Jena Campaign. Clausewitz, serving as Aide-de-Camp to Prince August, was captured in October 1806 when Napoleon invaded Prussia and defeated the massed Prussian-Saxon army commanded by Karl Wilhelm Ferdinand, Duke of Brunswick (who was mortally wounded), in twin battles at Jena and Auerstedt (see Battle of Jena-Auerstedt) on October 14, 1806. Carl von Clausewitz, at the age of twenty-six years, became one of the 25,000 prisoners captured that day as the Prussian army disintegrated.
Clausewitz was held prisoner in France from 1807 to 1808. Returning to Prussia, he assisted in the reform of the Prussian army and state. He also married the socially prominent Countess Marie von Brühl and socialized with Berlin's literary and intellectual elites. Opposed to Prussia's enforced alliance to Napoleon, he left the Prussian army and subsequently served in the Russian army from 1812 to 1813 during the Russian Campaign. Like many Prussian officers living in Russia, he joined the Russo-German Legion in 1813. In the service of the Russian Empire, Clausewitz helped negotiate the Convention of Tauroggen (1812), which prepared the way for the coalition of Prussia, Russia, and the United Kingdom that ultimately defeated Napoleon I of France and his allies.
In 1815, the Russo-German Legion was integrated into the Prussian Army and Clausewitz thus re-entered Prussian service. He was soon appointed chief of staff to Johann von Thielmann's III Corps. In that capacity, he served at the Battle of Ligny and the Battle of Wavre during the Waterloo Campaign in 1815. The Prussians were defeated at Ligny (south of Mont-Saint-Jean and the village of Waterloo) by an army led personally by Napoleon, but Napoleon's failure to actually destroy the Prussian forces led to his eventual defeat a few days later at the Battle of Waterloo when the Prussian forces arrived on his right flank late in the afternoon and joined the Anglo-Dutch forces pressing Napoleon's front. At Wavre, Thielmann's corps, greatly outnumbered, prevented Marshall Grouchy from reinforcing Napoleon with his corps.
Clausewitz was promoted to Major-General in 1818 and appointed director of the Kriegsakademie, where he served until 1830. In the latter year, the outbreak of several revolutions around Europe and a crisis in Poland appeared to presage another major European war. Clausewitz was appointed chief-of-staff to the only army Prussia was able to mobilize, which was sent to the Polish border. He subsequently died in a cholera outbreak in 1831. His magnum opus on the philosophy of war was written during this period, and was published posthumously by his widow in 1832.
Although Carl von Clausewitz participated in many military campaigns, he was primarily a military theorist interested in the examination of war. He wrote a careful, systematic, philosophical examination of war in all its aspects, as he saw it and taught it. The result was his principal work, On War, the West's premier work on the philosophy of war. His examination was so carefully considered that it was only partially completed by the time of his death. Other soldiers before this time had written treatises on various military subjects, but none undertook a great philosophical examination of war on the scale of Clausewitz's and Tolstoy's, both of which were inspired by the events of the Napoleonic Era.
Clausewitz's work is still studied today, demonstrating its continued relevance. Lynn Montross writing on that topic in War Through the Ages said; "This outcome...may be explained by the fact that Jomini produced a system of war, Clausewitz a philosophy. The one has been outdated by new weapons, the other still influences the strategy behind those weapons."
Clausewitz introduced systematic philosophical contemplation into Western military thinking, with powerful implications not only for historical and analytical writing but for practical policy, military instruction, and operational planning.
Vom Kriege (On War) is a long and intricate investigation of Clausewitz's observations based on his own experience in the Wars of the French Revolution and the Napoleonic Wars and on considerable historical research into those wars and others. It is shaped not only by purely military and political considerations but by Clausewitz's strong interests in art, science, and education.
Some of the key ideas discussed in On War include:
Clausewitz used a dialectical method to construct his argument, leading to frequent modern misinterpretation. As described by Christopher Bassford, professor of strategy at the National War College of the United States:
One of the main sources of confusion about Clausewitz's approach lies in his dialectical method of presentation. For example, Clausewitz's famous line that "War is merely a continuation of politics," ("Der Krieg ist eine bloße Fortsetzung der Politik mit anderen Mitteln") while accurate as far as it goes, was not intended as a statement of fact. It is the antithesis in a dialectical argument whose thesis is the point—made earlier in the analysis—that "war is nothing but a duel [or wrestling match, a better translation of the German Zweikampf] on a larger scale." His synthesis, which resolves the deficiencies of these two bold statements, says that war is neither "nothing but" an act of brute force nor "merely" a rational act of politics or policy. This synthesis lies in his "fascinating trinity" [wunderliche Dreifaltigkeit]: a dynamic, inherently unstable interaction of the forces of violent emotion, chance, and rational calculation.
Another example of this confusion is the idea that Clausewitz was a proponent of total war as used in the Third Reich's propaganda in the 1940s. He did not coin the phrase as an ideological ideal—indeed, Clausewitz does not use the term "total war" at all. Rather, he discussed "absolute war" or "ideal war" as the purely logical result of the forces underlying a "pure," Platonic "ideal" of war. In what Clausewitz called a "logical fantasy," war cannot be waged in a limited way: the rules of competition will force participants to use all means at their disposal to achieve victory. But in the real world, such rigid logic is unrealistic and dangerous. As a practical matter, the military objectives in real war that support one's political objectives generally fall into two broad types: "war to achieve limited aims" and war to "disarm” the enemy—i.e., “to render [him] politically helpless or militarily impotent." Thus the complete defeat of one's enemies may be neither necessary, desirable, nor even possible.
In modern times the reconstruction and hermeneutics of Clausewitzian theory has been a matter of some dispute. One prominent analysis was that of Panagiotis Kondylis, a Greek-German writer and philosopher who opposed the popular views on Clausewitz of Raymond Aron (in Penser la Guerre, Clausewitz) and other liberal writers. One of his most famous works on the subject was titled Theory of War and first published in German, later translated into Greek by Kondylis himself. In this very influential book, Kondylis opposes Raymond Aron's liberal perception of Clausewitzian theory. According to Aron, in Penser La Guerre, Clausewitz, Clausewitz was one of the very first writers condemning the militarism of the military staff and its war-proneness (based on Clausewitz's argument that "war is a continuation of politics by other means"). Kondylis claims that this is a reconstruction not coherent with Clausewitzian thought. He claims that Clausewitz was morally indifferent to war and that his advice regarding politics' dominance over the conduct of war has nothing to do with pacifistic ideas—but then, very few writers have accused Clausewitz of pacifism. For Clausewitz, war is just a means to the eternal quest for power, of raison d'État in an anarchic and unsafe world. Other famous writers who have studied Clausewitz's texts and translated them into English are the war specialists Peter Paret (Princeton University), Sir Michael Howard, and the philosopher, musician, and game theorist Anatol Rapoport. The latter writer edited the much-criticized Penguin edition of On War and has produced comparative studies of Clausewitz and other theorists, such as Tolstoi. Bernard Brodie's A Guide to the Reading of "On War", in the 1976 Princeton translation, expressed his own interpretations of the Prussian's theories and provided students with an influential synopsis of this vital work.
Some claim that nuclear proliferation makes Clausewitzian concepts obsolescent after a period—i.e., the 20th century—in which they dominated the world. John E. Sheppard, Jr., argues that, by developing nuclear weapons, state-based conventional armies simultaneously both perfected their original purpose (to destroy a mirror image of themselves) and made themselves obsolete. No two nuclear powers have ever used their nuclear weapons against each other, instead using conventional means or proxy wars to settle disputes. If, hypothetically, such a conflict did in fact occur, both combatants would be effectively annihilated. Therefore, the beginning of the 21st century has found many instances of state armies attempting to suppress terrorism, bloody feuds, raids and other intra/supra-state conflict while using conventional weaponry.
Others, however, argue that the essentials of Clausewitz's theoretical approach remain valid, but that our thinking must adjust to changed realities. Knowing that "war is an expression of politics" does us no good unless we have a valid definition of "politics" and an understanding of how it is reflected in a specific situation. The latter may well turn on religious passions, private interests and armies, etc. While many commentators are quick to dismiss Clausewitz's political context as obsolete, it seems worthwhile to note that the states of the twentieth century were very different from Clausewitz's Prussia, and yet the World Wars are generally seen as "Clausewitzian warfare"; similarly, North and South Vietnam, and the United States as well, were quite unlike 18th century European states, yet it was the war in Indochina that brought the importance of Clausewitzian theory forcefully home to American thinkers. Clausewitz himself was well aware of the politics that drove the Thirty Years' War, a conflict that bears a great deal of similarity to the current struggle in Iraq. The idea that states cannot suppress rebellions or terrorism in a nuclear-armed world does not bear up well in the light of experience: Just as some rebellions and revolutions succeeded and some failed before 1945, some rebellions and revolutions have succeeded and some have failed in the years since. Insurgencies were successfully suppressed in the Philippines, Yemen, and Malaysia—just a few of many examples. Successful revolutions may destroy some states, but the revolutionaries simply establish new and stronger states—e.g., China, Vietnam, Iran—which seem to be quite capable of handling threats of renewed insurgency.
The real problem in determining Clausewitz's continuing relevance lies not with his own theoretical approach, which has stood up well over nearly two centuries of intense military and political change. Rather, the problem lies in the way that thinkers with more immediate concerns have adapted Clausewitzian theory to their own narrowly defined eras. When times change, people familiar only with Clausewitz's most recent interpreters, rather than with the original works, assume that the passing of cavalry, or Communism, or the USSR's Strategic Rocket Forces, means that Clausewitz is passé. Yet we always seem to be comfortable describing the age of warfare just past as "Clausewitzian"—even though Clausewitz never saw a machinegun, a tank, a Viet Cong, or a nuclear weapon.
The phrase fog of war derives from Clausewitz's stress on how confused warfare can seem while one is immersed within it. The term center of gravity, used in a specifically military context, derives from Clausewitz's usage (which he took from Newtonian Mechanics). In the simplified and often confused form in which it appears in official US military doctrine, "Center of Gravity" refers to the basis of an opponent's power (at either the operational, strategic, or political level).
Which translates as:
There is no single "correct" spelling for German names before the early 19th century. Vital records were kept by pastors in their parish records. Different pastors used different spellings and commonly ignored how their predecessor may have spelled the same name. The name of the same individual can be found spelled differently in the same parish record, for example, if a pastor registered his birth and a different one his marriage and/or his death. It appears that pastors recorded names as they heard them and spelled them as they believed they should be spelled. Pastors treated persons of importance or high status such as nobility or civil or military officials more deferentially. For the names of such persons it can make sense to distinguish between such spellings as "Carl" or "Karl" even then. The situation changed radically in the Napoleonic era when French civil servants introduced greater discipline in keeping vital records in German lands. Spellings of family and given names were "frozen" in whatever state they happened to be in then. It was, however, not unusual for brothers who made their homes in different parishes to have their family names spelled differently. Such variations endure to this day and confound amateur genealogists who are not familiar with the fluidity of German spellings before the Napoleonic reforms. While spellings of names were fluid when Clausewitz was born, they had become firm by the time of his death. That is why it makes sense to accept the spelling of his name as recorded on his tombstone which, presumably, agrees with the vital records of his death.
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