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The test, scheduled for Tuesday, is the first time the United States will try to intercept an ICBM.

The United States has used the Ground-Based Midcourse Defense (GMD) system, managed by Boeing Co. and in place to counter attacks from rogue states such as North Korea, to intercept other types of missiles but never an ICBM.

While U.S. officials believe Pyongyang is some years away from mastering re-entry expertise for perfecting an ICBM, it is making advances. This week the head of the U.S. Defense Intelligence Agency said that if left unchecked, North Korea is on an “inevitable” path to obtaining a nuclear-armed missile capable of striking the United States.

The remarks are the latest indication of mounting U.S. concern about Pyongyang’s advancing missile and nuclear weapons programs, which the North says are needed for self-defense.

U.S. officials said that the test had been planned well in advance and was not in reaction to any specific event.

The Missile Defense Agency said an interceptor based out of Vandenberg Air Force Base in California, one of 36 in California and Alaska, will be used in the test to shoot down a target similar to an ICBM over the Pacific Ocean.

The system has carried out successful intercepts in nine out of 17 attempts dating back to 1999. The most recent test was in 2014. Last year a science advocacy group said the system has no proven capability to protect the United States. (Reporting by Idrees Ali; Editing by James Dalgleish)