Looking on the internet deeply has found these results:

Basically for armies is the most popular phrase on the web.

Basically for the army 15 results on the web	Basically for armies 15,470,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I never cared much for army life. And he was the only one that could've stopped him from scoring what would've been a game These women were sport for army scouts. I basically substitute "Army" for "Rams" of Riverview High School. Starkwood's basically a private army. The Kill Club, or "KC," as we call it, is basically for solvers and fans of famous murders. Not that I'm any advertisement for Army life. For many people, translators for army are traitors.

Basically for the army

15 results on the web

Basically for armies

15,470,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I never cared much for army life.
And he was the only one that could've stopped him from scoring what would've been a game
These women were sport for army scouts.
I basically substitute "Army" for "Rams" of Riverview High School.
Starkwood's basically a private army.
The Kill Club, or "KC," as we call it, is basically for solvers and fans of famous murders.
Not that I'm any advertisement for Army life.
For many people, translators for army are traitors.