Question: what is the most powerful military vehicle?
Answer: Typhoon Submarine. Country: Russia. The Typhoon-class subs are the largest military submarines ever built, clocking in at a staggering 515 feet long. ... 
USS Enterprise Aircraft Carrier. Country: U.S.A. ... 
Schwerer Gustav Gun. Country: Germany. ... 
Char 2C Tank. Country: France. ... 
Mil MI-26 Helicopter. Country: U.S.S.R.