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Details are still limited, but the U.S. military has confirmed that it launched a ground-launched ballistic missile, believed to be in the intermediate-range class, from Vandenberg Air Force Base in California this morning. This is the first U.S. test of this type of weapon since the collapse earlier this year of the Intermediate-Range Nuclear Forces Treaty, or INF, between the United States and Russia, which had prohibited both countries from developing and fielding missiles in this category.
CNN's Ryan Brown was among the first to get the official acknowledgment of the test. In March 2019, the Pentagon announced that it planned to conduct a test of an intermediate-range ballistic missile, or IRBM, defined as a ballistic missile with a maximum range of between 1,864 and 3,418 miles, in November. It's unclear why the test was delayed slightly. In August 2019, the U.S. military conducted a test of BGM-109 Tomahawk land-attack cruise missile from a trailer-mounted derivative of the Mk 41 Vertical Launch System, another system the INF had previously banned. Under the provisions of the INF, the U.S. Army had disposed of dedicated ground-launched BGM-109G Gryphon cruise missiles and Pershing II medium-range ballistic missiles in the late 1980s and early 1990s.
"The Department of Defense conducted a flight test of a conventionally-configured ground-launched ballistic missile at approximately 8:30am. Pacific Time, today, Dec. 12, 2019, from Vandenberg Air Force Base, CA," the Pentagon said in a statement, according to a Tweet from CNN's Brown. "We are currently evaluating the results of the test."
There were indications that the test was imminent already. On Dec. 11, 2019, Twitter user @AircraftSpots, a friend of The War Zone, had posted a Tweet about a Notice to Airmen (NOTAM) cordoning off an area off the coast of California near Vandenberg ahead of what appeared to be some kind of test. Vandenberg is also routinely used to conduct regular test launches of the U.S. Air Force's LGM-30G Minuteman III intercontinental ballistic missile (ICBM).
There are no details yet about the missile's actual design or capabilities. However, in 2017, the U.S. military reportedly began studying what it would take to develop weapons that the INF then prohibited. This was prompted by Russia's development and fielding of a treaty-breaking ground-launched cruise missile, something the Kremlin continues to deny it did, which ultimately led to the Cold War-era deal falling apart.
The U.S. military could have explored multiple tracks and put any number of them into action after the abandonment of the INF. Developing a missile using only one or two stages from the three-stage Minuteman III design is one option. The U.S. Army has already acquired similar designs in the past for use as surrogates for ballistic missiles during ballistic missile defense system tests. The Hera, for example, uses the second and third stages from older Minuteman II ICBMs.
Another possibility would have been a conventionally armed design based on the booster that the U.S. Army developed as part of its Advanced Hypersonic Weapon (AHW) program are options that the United States could have leveraged quickly to enable this test.
The Army has already been leveraging the work done under the AHW effort to support the development of a new ground-based hypersonic missile as part of a tri-service effort with the U.S. Air Force and Navy. There is also a possibility that this test was actually of a booster with a new hypersonic boost-glide vehicle on top, but the Army has said it doesn't expect to conduct the first test launch of its future ground-launched hypersonic weapon until 2022.
In 2018, the service had also revealed plans for a "Strategic Fires Missiles" with a then-INF-breaking range, which appeared to be a new ground-launched ballistic missile. This program may also have informed work on the new IRBM.
The test is almost certain to draw the ire of Russia, where President Vladimir Putin has already demanded a "symmetric response" to the August ground-launched Tomahawk test, as well as criticism from China. The U.S. government has said in the past it could use new post-INF missiles to challenge the Chinese geopolitically in the Pacific Region, especially in disputed areas, such as the South China Sea. It may also prompt responses from smaller potential opponents, such as North Korea, which has been threatening to a new "strategic" missile test before the end of the year and has decried international criticism, especially from the United States, of its own ballistic missile programs.
We will continue to update this story as more information becomes available.
UPDATE: 1:25pm EST—
Breaking Defense is reporting that what the U.S. military is now calling a "prototype conventionally-configured ground-launched ballistic missile" flew more than 310 miles, beyond the limits the INF had previously imposed.
A close-up view of the missile on the launch platform right before the test strongly suggests that the prototype has a Maneuverable Reentry Vehicle (MARV) warhead. This had also been a feature on the Pershing II.
https://www.thedrive.com/the-war-zo...ic-missile-following-inf-arms-treaty-collapse