Israel's military is clashing with the militant Hezbollah group along a strategic river in Lebanon. The clashes come as Israeli troops are pushing farther north, just days before Lebanese and Israeli delegations are to meet for talks in Washington. Lebanon is hoping for an agreement that would lead to Israeli withdrawal from Lebanon. The Litani River has been a de facto boundary, with areas to the south under Israeli control despite a nominal ceasefire. Tuesday's intensified strikes follow a warning by Israeli Prime Minister Netanyahu. One Israeli strike killed a family of 12 in the eastern village of Mashghara. Hezbollah launched several attacks on Israeli troops along the river.