Army
An Army
noun
The army squad is an army. It's also just the army. It refers more to "an" army rather than "the" army. Just a group of people who do army things.
ぐんたい
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.
この鰐蟹軍隊の成功のためには、あなたが必要なんです。どうか入隊してください。
I need you. You are crucial to the success of this crabigator army. Please join us.