The term 'Bomber (B-2)' is referring to the Northrop Grumman B-2 Spirit, a strategic bomber used by the United States Air Force. It is also known as the STEALTH Bomber due to its low observable STEALTH technology, which allows it to penetrate dense anti-aircraft defenses. The B-2 was first flown in 1989 and has since been used in numerous military operations. Its unique design and advanced technology make it one of the most advanced bombers in the world.