The United States launched a long-range B-1B bomber over the Korean Peninsula on Wednesday in the first bombing exercise in seven years.
The US B-1B bomber conducted joint aerial exercises with other US and South Korean fighter jets, South Korea's Defense Ministry said in a statement.
The ministry said the B-1B bomber dropped the joint strike munitions during the exercise while being escorted by South Korean jets, the first such bombing exercise since 2017.
JDAM is a guidance system that makes bombs more accurate. The system is guided by GPS (Global Navigation System), AP reports.
All US fighter jets, bombers and drones can use the JDAM system, and the munitions are among the weapons systems the United States has provided to Ukraine to help it fight the Russian invasion.
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North Korea threatens retaliation after US bomber strikes South Korea
The exercise is seen as a show of force against North Korea amid rising tensions over recent launches of garbage balloons towards South Korea.