Proposed rules of engagement for an expanded U.N. force in southern Lebanon would allow troops to open fire in self-defense, protect civilians and back up the Lebanese army in preventing foreign forces or arms from crossing the border, according to a U.N. document obtained Tuesday. The 20-page draft was circulated to potential troop-contributing countries last week by the U.N. Department of Peacekeeping Operations, which is trying to get an additional 3,500 troops on the ground by the e(AP) — nd of next week to strengthen the 2,000 overstretched U.N. peacekeepers already there. Full Story