https://www.youtube.com/watch?v=0BT93j864K4

Enter the XB-70 Valkyrie, the largest and fastest bomber the US has ever built. It is the “largest and fastest bomber” the US has ever built, according to The National Interest. The XB-70 Valkyrie can sail at Mach 3, ride its own shock waves to do so, and can reach an altitude of 70,000 feet.#usairforce#usmilitarynotes#usa#us#aviation#news#usmilitary#TheXB70Valkyrie#usmilitarynews#militaryupdate#usdefenseupdate#