COP was located in the territories of the following former voivodeships: eastern parts of Kielce Voivodship and Kraków Voivodship, southern part of Lublin Voivodeship, and the western part of Lwów Voivodeship, or in other terms, 46 powiats, constituting 15.4% of the territory of Poland and inhabited by 17% of Poland's population. The urbanization factor of those territories was 17% (94 cities), compared to Poland's average of 30%. The arguments for such location of COP were:
The COP scheme required gigantic financial investment - just the development of the infrastructure and the military industry was estimated at 3 billion zlotys. As the expectations of war grew, private investment in Europe in the late 1930s was small, and thus the Polish government carried most of the burden of financing the project: in the years 1937-1939, COP had consumed approximately 60% of all Polish investment funds.
The following industrial projects were part of the scheme: steel mill and power plant in Stalowa Wola, rubber factory in Dębica, automobile factory in Lublin, aircraft factory in Mielec, aircraft engine and artillery factory in Rzeszów, hydroelectric power plants in Rożnów and Myszkowice, expansion of Zakłady Azotowe in Mościce. Military industry in the Staropolski Okręg Przemysłowy was expanded in the towns of Radom, Skarżysko-Kamienna, Ostrowiec Świętokrzyski, Starachowice, Kielce. Most of those investments were located in regions with high unemployment, and their construction succeeded in reducing social tensions and began to strengthen the Polish economy.
The development of COP and similar projects, like the construction of the seaport in Gdynia, were the most outstanding achievements of the Second Polish Republic, marking the beginning of the new era of the recently regained independence. The COP scheme was continued by the communist government of Poland after the Second World War.
However, as the end date for the scheme was end of July 1940, and Poland did not have sufficient capital to carry out the entire plan on its own, few of the intended projects were completely operational before the war broke out, and many other ones were not launched at all. Consequently, their contribution to the equipment of the Polish Army in the run-up to the war was relatively insignificant, and did little to offset the crushing material superiority of the German armed forces. German blitzkrieg tactics in the Second World War, with their rapid advances by fast motorized forces and long range air attacks, ensured that the COP region failed in being a secure haven for Polish industry. In any event, the German dismemberment of Czechoslovakia outflanked Poland from the south and put the COP factories in the direct path of German advance from Slovakia. During the German occupation, most of the factories were converted to contribute to the German war effort. After the war, the COP-initiated industrial enterprises were further expanded and for the most part continue to function until today.