Rights groups warn of state paranoia as experts on hypersonics, the science behind ultrafast missiles, have been jailed.

Extremely precise missile use and study of Zawahiri's habits were key to the targeted US killing.

China has a long-term plan to rival the world's biggest military powers.

The Toebbes seemed to have everything - so why did they allegedly try to sell nuclear secrets?

New materials are making body armour lighter but nanotechnology could provide a breakthrough.

The militant group showcased the kit captured during their takeover of Afghanistan.

Submarines controlled by artificial intelligence are being designed to take on military missions.