VANDENBERG SPACE FORCE BASE, California — An unarmed ICBM has been launched from California to test the defense system, the US Air Force Global Strike Command reported.

According to a statement released by the United States Air Force, the Minuteman III missile took off from the Vandenberg Space Base in California at 11:01 p.m. on Thursday. Its reentry vehicle travelled approximately 4,200 miles over the Pacific Ocean to the Kwajalein Atoll in the Marshall Islands.

The United States Air Force stated that the launch was regular, despite the fact that it occurred at a time when the United States was anxious about North Korea’s missile testing and the passage of a Chinese spy balloon through the United States.

According to the statement, “Such tests have occurred more than 300 times in the past,” and “this test is not the result of current events taking place around the world.”

There have been decades of use for the Minuteman III system. The Sentinel missile, a newer model, is set to take its place in the Air Force’s arsenal.

“Until full capability is reached in the mid-2030s, the Air Force is committed to ensuring that the Minuteman III remains a viable deterrent,” the service stated