4 Pics 1 Word Puzzles

What is the 1 word (6 letters) answer to the puzzle below? Scroll down to see the answer!

4 Pics 1 Word answers, 4 Pics 1 Word cheats, 4 Pics 1 Word 6 letters castle with fortified walls, girl in karate pose wearing exercise clothes, soldiers with guns at sunset, camera computer security robot

Castle, Karate, Soldiers, Security

The Answer is: