Please imagine a troop of soldiers which are hiding and waiting for their enemies to arrive to their hiding place so that they could suddenly attack the enemies!
Let's suppose an animal which is doing the same action and waiting for its prey to arrive to attack and hunt it.
Is there any single verb or an idiom / expression in English which can encapsulate these quite similar actions in English?
Unfortunately, despite my searches, I didn't succeed in finding any particular word to describe this action.
P.S. I have already seen the similar threads, but they disn't contain the information I need.