"Libya & Syria (Obama)
Iraq & Afghanistan (George W Bush)
Panama, Iraq, Somolia (sic) (George W Bush)
Beirut & Grenada (Reagan)
Vietnam (Nixon)
Bosnia & Kosovo (Clinton)
'War becomes perpetual when it is used as a rationale for peace' - Norman Solomon"
Unfortunately, the maker of this poster forgot other important examples:
Korea (Truman)
The South (Lincoln)
Pearl Harbor (Roosevelt)
Poland (Chamberlain)
I'm not sure why people think "roll over and surrender" is a recipe for peace.
"Peace for our time", though, maybe.
Or, perhaps, the true answer is that War is only Evil when a Western Power is the 'aggressor'.