United States , Russia absent from signing of cluster bomb ban treaty signing . Comment: During the 34-day war in Lebanon in 2006 , the United Nations estimated that Israel dropped 4 million bomblets , 1 million of which may not have exploded , according to the ICRC . U.S. insists the devices are important part of its defense strategy .
United States , Russia absent from signing of cluster bomb ban treaty signing . Comment: U.S. insists the devices are important part of its defense strategy .