the art or science of employing military forces and strategies in order to achieve victory over an enemy

战术, 谋略
a country's military force trained to fight on land

军队, 陆军
someone who is employed by a government to obtain secret information on another person, country, company, etc.

间谍, spy
an object that can physically harm someone or something, such as a gun, bomb, knife, etc.

武器, 兵器
(of military) to move away in order to escape the danger because one has been defeated or is weak

撤退, 退却
a group of people, organizations, or political parties working together toward their common interests

联盟, 联邦
a high-ranking officer in the army, marine corps, or air force, whose rank is between a lieutenant colonel and brigadier general

上校, 军校长
the act of invading or entering a territory, country, or region by force or without permission, often with the intent to control or dominate the area and its inhabitants

入侵, 侵略
