North Korea has the fourth-largest number of active armed forces in the world. Alain Nogues/Corbis via Getty Images The International Institute for Strategic Studies compiled data about the world's mi...
A Spanish EF-18 on the tarmac before takeoff at Šiauliai. Some elements of the image have been obscured for security reasons at the request of the Spanish Air Force. Jake Epstein/Business Insider Spai...
Air Force One Rebecca Blackwell/AP Any Air Force plane carrying a US president is called Air Force One. President John F. Kennedy was the first to use a jet designed specifically for a US president. P...
Pituffik Space Base in Greenland. Ritzau Scanpix/Thomas Traasdahl via REUTERS Pituffik Space Base was established in 1951 as part of a defense treaty between the US and Denmark. Base operations includ...