This probably did not impress the Kim regime too much considering this response has been done before:
A U.S. B-1B Lancer strategic bomber joined a South Korea-U.S. joint air drill Saturday, one day after North Korea fired an intercontinental ballistic missile (ICBM) toward the East Sea, military officials said.
According to the Joint Chiefs of Staff (JCS), the supersonic bomber made a sortie over South Korea’s air defense identification zone (KADIZ) escorted by South Korea’s F-35A jets and U.S. F-16 fighters.
On Friday, North Korea fired a Hwasong-17 ICBM, which is known to carry multiple warheads and have a range of around 15,000 kilometers, long enough to cover the entire U.S. mainland.
“Through this drill, we have once again demonstrated the joint military capacity of the South Korea-U.S. alliance and Washington’s commitment to protecting the Korean Peninsula and providing extended deterrence,” the JCS said.
Yonhap
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