军种军种是指军队在其组成上,依据主要作战空间、使命和武器装备所划分的基本种类。现代各国军队多数分为陆军、海军、空军三个军种,有的国家还设有防空军,俄罗斯则有战略火箭军,有些国家只有陆军、海军或陆军、空军两个军种,少数国家只有陆军,也有个别国家不分军种。每个军种一般 The military service category refers to the basic categories of the military in its composition, based on the main combat space, mission, and weapons and equipment. Most modern military forces are divided into the Army, Navy, and Air Force three services. Some countries also have air defense forces. Russia has strategic rocket forces. Some countries have only two types of army, navy, or army, and air force. A few countries only have the Army. There are also individual countries regardless of service. Each service is generally