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For the first time ever, the Pentagon next week will test a missile defense aimed at intercepting an intercontinental ballistic missile. The test, slated for Tuesday, is intended to "more closely simulate a North Korean ICBM aimed at the U.S. homeland," Reuters reported. North Korea has engaged in numerous tests recently, warning it will soon have a nuclear missile capable of reaching the U.S.

While the U.S. interceptor has before never tested an intercontinental ballistic missile, it's completed various other tests — though to varying degrees of success. The most recent test in 2014 was successful, but Reuters reported that, overall, the interceptor only succeeded in 9 of the 17 attempts it's made since 1999.