Executive Order 13780, titled 'Protecting the Nation from Foreign Terrorist Entry into the United States,' was signed by President Donald Trump on March 6, 2017, as a revised version of the earlier Executive Order 13769. Its purpose was to protect the United States from foreign terrorists by temporarily restricting entry of individuals from countries deemed to present national security risks. It imposed a 90-day ban on entry for nationals of Iran, Libya, Somalia, Sudan, Syria, and Yemen (excluding Iraq, which was removed from the list), and suspended the U.S. Refugee Admissions Program for 120 days, with an indefinite suspension for Syrian refugees. The order aimed to allow time for improved vetting procedures. It faced immediate legal challenges but was ultimately upheld by the Supreme Court in Trump v. Hawaii on June 26, 2018, though subsequent versions of the travel restrictions were issued via presidential proclamations.