View the full text of the Oath of Allegiance to the United States by visiting the page with that title on the U.S. Citizenship and Immigration Services website. The Oath of Allegiance embodies the ideas that are set out in Section 337a of the Immigration and Nationality Act, according to USCIS.
The Oath requires new citizens to support the Constitution, renounce all allegiance to foreign countries, and support and defend the Constitution against all domestic and foreign enemies, reports USCIS. It also demands that when required by law, they bear arms on behalf of the United States, perform noncombatant service in the armed forces of the United States or perform work of national importance under civilian direction.
If a person proves to the satisfaction of the U.S. Attorney General that he is opposed to the bearing of arms or performing noncombatant service in the Armed Forces of the United States because of religious training and belief, the United States may omit those clauses from his Oath, states Section 337a of the Immigration and Nationality Act. Additionally, if the person applying for citizenship has a foreign title of nobility, he must renounce it in the same ceremony as the swearing of the Oath of Allegiance. In rare cases, such as extreme illness, the Attorney General may grant administrative naturalization without the taking of the Oath.