President Donald Trump banned transgender persons from joining the US military.
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President Donald Trump banned citizens of seven countries from entering the US.
US Marines landed in Somalia as part of Operation Restore Hope in order to secure the trade routes to deliver food to the people.
Donald Trump ended family separation on the southern border.
The US Navy commissioned USS Nautilus, which became the world’s first nuclear submarine.
The US Air Force launched the Discoverer 1 reconnaissance satellite.
