Peacekeeping

Ceasefire.ca: Peacekeeping and Left wing Imperialism

Most people who identify as left wing would agree that systems of governance that enable exploitation by the world’s most powerful corporations, governments and individuals should be changed. Most would also agree that militarism and military solutions are best avoided.
Why then do so many people ‘on the left’ support UN missions that claim to be about “peacekeeping” but often serve as little more than fig leafs to cover up imperialism?