Navy jokes

My Japanese friend told me a Pearl Harbor joke. I told him he bombed it.

What is your arm's favorite military branch? The army.

Q: Why do Norwegian ships have bar codes on them?

A: So when they come into port they can Scan-Da-Navy-In!

Why does the Norway navy have barcodes on the sides of their ships?

So when they return to port, they can Scandinavian.