An unmanned drone boat rescued two Army helicopter airmen from the water after their Apache helicopter went down in the Strait of Hormuz.

Elite US airborne troops from the 82nd Airborne Division were among the American forces involved in leading the rescue operation.

A Chinese international student who illegally filmed military facilities and a U.S. aircraft carrier using drones in Busan has been sentenced to a prison term on charges of general espionage. This marks the second time a foreigner has been convicted of general espionage in South Korea.

The list includes Northrop Grumman and several startups competing to supply low-cost payloads compatible with any drone design.