23/07/2009 The upgraded Arrow missile defense system failed an important test off the western coast of the United States Thursday. The missile was not launched because of “interceptor problems” resulting from failures in the communications system.

The Pentagon, which is working with Israel to develop the program, stated that "not all test conditions to launch the Arrow Interceptor were met and it was not launched.” It added that other undefined objectives were achieved.

The Arrow system is designed to intercept missiles launched from as far away as 680 miles (1,100 kilometers).

It tracked a target missile dropped from an American airplane over the Pacific Ocean, but the failure to launch the interceptor missile left the Arrow defense system unproven.

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