Question

who attacks and robs ships at sea

Answer 1

Answer is pirates

Hope it helps

Answer 2

Pirates attacks and robs the ships at sea because they have years of experiencing in looting the ships and people hard earned money and this is the only way they can survive.

Pirates of the Caribbean is a movie in which it showcased that there are lot of thieves who stole everything firm ships.

Pirates have weapons with then which they used to fight with policemen.