指挥部宣布该区域为自由开火区，士兵可以自行决定射击目标。

The command declared the zone ___weapons-free, enabling soldiers to fire at will.

这个军事基地是武器禁入区，士兵任何时候都不得携带枪支。

This military base is a ___weapons-free zone where soldiers cannot carry firearms at all times.