The meeting is the first in recent memory by a head of U.S. Southern Command and comes amid growing concerns in Cuba of a possible U.S. military attack.
During the test, troops launched a Neros Archer FPV drone from the ground before transferring control to operators aboard a helicopter orbiting miles away.
The U.S. Department of Justice charged former Cuban president Raúl Castro on Wednesday for his part in a 1996 plane shoot-down that killed three Americans.