No, it has not been in any wars yet. ;)
India-Pakistani Wars of the 1960s.
So they won't injure the sheep.
No, the United States has not been in three world wars.
Ireland is a neutral country, so it has not been officially involved in any wars.
The major wars Australia has been involved in are the following:Boer WarWW1WW2Korean WarVietnam WarWar on Terror
Antarctica has not ever been involved in war.
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General Cameron
There have been two World Wars, and Italy has been involved directly in both of them.
The Napoleonic wars. These ended in 1815. Since then Switzerland has been neutral and not involved in any wars. There have been a few short civil wars in the 1800's.
i think there has been a war or two