The premise that the UN has never been used as a military force is a lie - see Korean War for further details
BINGO!
She's talking about the UN Peacekeepers, which is its own department started in 1958. Having done a lot of reading on them lately it looks like their primary function is to provide jobs for third world soldiers from places like Bangladesh (8,826), Pakistan (8,251) and Ethiopia (6,514). Oh, and they must have a whole section that does nothing but make up acronyms.