The Black Hawk helicopter that collided with a passenger jet in Washington on Wednesday was on a training flight along a route core to a seldom-discussed military mission to evacuate senior officials to safety in the event of an attack on the U.S., officials say.

The third pilot of the Black Hawk helicopter which fatally collided with a passenger plane in Washington DC has been identified as ‘brilliant warrior’ Rebecca M Lobach. Her name had previously not been released publicly,