Miliband said Britain comprises less than one percent of Israel's military imports. In contrast, he said, the United States supplies 95 percent of foreign-origin military equipment ordered by Israel.

In a statement, Miliband said weapons with British components were "almost certainly" deployed by Israel in the 2009 war in the Gaza Strip. Britain has served as a key subcontractor for a range of U.S. defense majors, including Boeing, Lockheed Martin and General Dynamics.

Officials said Britain banned exports of offensive military systems to Israel in 2002. But they said British companies, particularly BAE Systems, have installed components in such platforms as the F-16 multi-role fighter ordered by Israel.

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