Arlington, April 15 -- The United States Air Force (USAF) has put the spotlight on its next-generation stealth bomber, the B-21 Raider, after a key mid-air refuelling test, with officials saying the aircraft will reduce pressure on tanker fleets and strengthen deterrence.

This in-flight refuelling test for the Raider is a big step forward for a long-range strike platform that can operate over enormous distances.

The B-21 conducted aerial refuelling with a KC-135 Stratotanker.

Adding to the worth of the aircraft, US Air Force Chief Ken Wilsbach said, "This long-range strike bomber will reduce the demand on our tanker fleet and free up assets to support the joint force. This will provide a wider range of employment options and the deterr...