Arms
Weapons
noun
The containers that soldiers use aren't just bowls and stuff, they're the things that hold their arms and weapons. Think spear and sword containers, full of weapons!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
これが俺の最終兵器だ！
This is my ultimate weapon!
化学兵器の研究室で働いていたことがあります。
I used to work at a chemical weapons laboratory.
私たちは兵器使用の是非について語り合いました。
We discussed whether using arms was right or wrong.