Is foreign interventionism liberal or conservative?
"We must use force to
keep America safe from external threats" - Conservative interventionist
"America has a leading role in keeping the world safe from extremism and
poverty" - Liberal interventionist
"..I don't want to run the world. The Constitution doesn't give me the authority to run the world. We ought to mind our own business, is what we need to do. With all this spending overseas,
wasted money..." - Conservative isolationist
And of course everyone already knows what a liberal isolationist is.
It's somewhat easier to be a conservative than a liberal if you're a war hawk.