Twenty-eight immigrants will become naturalized U.S. citizens at the July 4th Iowa Cubs game in Des Moines.
Iowa's newest U.S. citizens will line up along Principal Park's third-base line and take the Oath of Allegiance.
They'll promise to support and defend the constitution, and also renounce loyalty to any foreign government.
"This is a part of a big effort every 4th of July to highlight citizenship and the great people who are becoming Americans," says Claire Nicholson, from U.S. Citizenship and Immigration Services.
The Des Moines ceremony is one of more than 100 scheduled nationwide over Independence Day weekend. Nearly 7,000 people will become U.S. citizens.
To become a citizen, a person must be at least 18 years old, hold a green card, have resided in the U.S. for five years and be of good moral character. They must also be literate in English and have knowledge of U.S. government and history.
Iowa's newest U.S. citizens hail from 18 different countries: Bhutan, Burma, Burundi, El Salvador, Ghana, Iraq, Liberia, Luxembourg, Mexico, Somalia, South Korea, South Sudan, Sri Lanka, Sudan, Thailand, Togo, Ukraine and Vietnam.