WASHINGTON, April 15 -- Lebanon and Israel opened their first direct diplomatic talks in decades on Tuesday in Washington following more than a month of war between Israel and the Hezbollah militant group, with Secretary of State Marco Rubio calling it a "historic opportunity" but making clear no breakthrough agreement was immediately expected. Rubio said the Trump administration is "very happy" to be facilitating the discussions, while noting that "we understand we're working against decades of history and complexities" that will not be quickly resolved. Hezbollah opposes the direct talks and was not represented, while the Iranian-backed group appeared to step up its fire on northern Israel as the discussions began. "But we can begin to mo...