U.S. Citizenship Through Military Service and Options for Military Relatives [April 29, 2022] [open pdf - 526KB]
From the Overview: "Obtaining U.S. citizenship provides certain benefits to immigrants, including the right to vote, security from deportation, and eligibility for a U.S. passport. Congress has provided opportunities for citizenship through qualifying military service since the Civil War. The Immigration and Nationality Act (INA) specifies provisions for expedited naturalization through military service during peacetime and periods of military hostilities. It also provides certain considerations for servicemembers' spouses, children, and parents. In recent years, some Members of Congress have expressed concern regarding the deportation of noncitizen U.S. veterans who were honorably discharged from the U.S. military, did not apply for naturalization, were charged with deportable offenses, and were removed to their countries of origin. Recently, the Department of Homeland Security (DHS) has announced certain initiatives addressing such concerns."
CRS In Focus, IF12089
Congressional Research Service: https://crsreports.congress.gov/