Tactical weapons refer to weapons with only general killing power. However, this kind of killing ability has only a limited killing range and cannot attack the enemy's strategic targets. For example, short-range attack weapons in the usual sense, including small tactical nuclear weapons.

Strategic weapons refer to weapons that can attack deep strategic targets in enemy war zones and have the effect of mass destruction. Strategically, this kind of weapon has the function and ability to deter and destroy the enemy, and has a strategic deterrent effect on the enemy. Such as nuclear weapons, long-range attack bombers and nuclear attack submarines.

The so-called conventional weapons, as the name implies, are those weapons commonly used by human beings since their own wars, which are relative to nuclear, chemical and biological weapons with special killing functions. In other words, all weapons except nuclear weapons, chemical weapons and biological weapons are conventional weapons.