The United States signs the Treaty of Amity and Cooperation in Southeast Asia.
United States Secretary of State Mike Pompeo announces the designation of the entirety of Iran's Islamic Revolutionary Guard Corps as a Foreign Terrorist Organization (FTO), effective April 15. This will be the first time the United States has designated a part of another government as a terrorist organization.
A roadside bomb kills three U.S. troops and one civilian contractor near Bagram Airfield, Afghanistan.
The United States, United Kingdom, France, and Italy issue a joint statement calling on Field Marshal Khalifa Haftar to end the offensive.
A judge in Miami orders the arrest of Guatemalan presidential candidate Roberto Arzú. Arzú is the second presidential candidate who has legal problems with the United States. This arrest warrant leaves him out of the general election.
The Federal Aviation Administration (FAA) certifies Alphabet Inc.-owned delivery drone service Wing to operate as an airline in the United States. Wing is the first delivery drone company to receive FAA air carrier certification.