The United States government has ordered a comprehensive review of all Green Cards issued to migrants from Sierra Leone and 18 countries following Wednesday’s attack on National Guard troops in Washington, D.C.

The decision was made public on Thursday as authorities identified the suspect as a 29-year-old Afghan national who previously worked with American forces in Afghanistan.

According to AfghanEvac, an organisation involved in relocating Afghans after the 2021 Taliban takeover, the suspect received asylum in April 2025 rather than permanent residency.

In a statement released on X, the Director of the US Citizenship and Immigration Services (USCIS), Joseph Edlow, said, “I have directed a full-scale, rigorous re-examination of every Green Card for every alien from every country of concern.” He added that the directive followed the president’s order to heighten scrutiny of migrants from specific nations.

The report notes that an earlier directive had already placed nearly all nationals from 12 countries, including Afghanistan, under a full travel ban.

Below is the complete breakdown of the affected countries as structured under the new review:

Countries with Full Travel Ban (12)

Afghanistan
Myanmar
Chad
Congo-Brazzaville
Equatorial Guinea
Eritrea
Haiti
Iran
Libya
Somalia
Sudan
Yemen

Countries with Partial Ban (7)

Burundi
Cuba
Laos
Sierra Leone
Togo
Turkmenistan
Venezuela

The announcement marks a significant expansion of the administration’s immigration restrictions, which officials say are part of broader efforts to reassess vetting procedures following the Washington attack. Authorities added that the review would complement ongoing measures aimed at tightening entry requirements for individuals from nations classified as high-risk.