Japan has a long history of military strength, having defended itself from external threats for centuries. It currently has three branches of defense forces and several specialized units, as well as alliances and partnerships with other countries such as the United States and South Korea. In recent years, Japan has invested in modernizing its military with new equipment such as F-35 stealth fighters, Aegis Ballistic Missile Defense System, Global Hawk surveillance drones, etc. It spends around 4% of its GDP on defense, making it one of the highest spenders among industrialized nations. Japan's overall military capabilities are considered strong enough to deter potential aggressors due to its highly trained personnel combined with advanced weaponry & technology.