Across 13 countries, about 80 percent of these ships are in service. The rest are either under construction or under development.

In a strange twist of fate, a tank designed to face down the Soviet Union’s mighty Red Army may end up the armored champion of one ex-Soviet country, while fighting another ex-Soviet country.

The Patton series of tanks debuted around 1950, meaning they’ve been in continuous service for 73 years. Not bad for a tank that left U.S. Army service in 1997.

Ironically, the J-7 and other Chinese copies of Cold War-era Soviet aircraft might achieve more success as drones than they did with a pilot in the cockpit.

Just 29,000 pounds of ordnance screaming at twice the speed of sound.

Its mission? To become a supersonic, low-altitude penetrator capable of delivering a nuclear weapon to a target deep within the Soviet Union.