SEOUL, South Korea (AP) 鈥 The United States flew long-range bombers for joint drills with South Korea and Japan on Wednesday in a show of force against North Korea, days after the North performed its first intercontinental ballistic missile test in five months.

The trilateral training off South Korea鈥檚 southern island of Jeju was meant to strengthen the countries鈥 joint response against North Korean nuclear threats, South Korea鈥檚 Joint Chiefs of Staff said in a statement.

The exercise involved B-1B bombers and South Korean and Japanese fighter jets, the statement said. It said the B-1Bs' flyover is the 13th time that a U.S. bomber has been temporarily deployed near and over the Korean Peninsula this year.

The B-1B is capable of carrying a large conventional weapons payload. North Korean has previously called the bomber's deployment a proof of U.S. hostility and had reacted with missile tests.

North Korea on Monday launched a Hwasong-18 ICBM into the sea in a drill it said was meant as a warning over the U.S. and South Korea鈥檚 confrontational steps. North Korea cited a recent U.S.-South Korean meeting to discuss their nuclear deterrence plans.

The U.S., South Korea and Japan slammed the launch as a provocation, noting it violated multiple U.N. Security Council resolutions that ban any ballistic activities by the North.

, a solid-fueled missile, is the North鈥檚 newest and most advanced ICBM. Its built-in solid propellant makes launches harder to detect than liquid-fueled missiles, which must be fueled for liftoffs. Monday鈥檚 launch is the Hwasong-18鈥檚 third firing this year.

said the launch showed how North Korea could respond if the United States were to make 鈥渁 wrong decision against it.鈥 But many foreign experts say the North still has technological obstacles to overcome to possess functioning nuclear-armed ICBM that can hit the continental U.S.

Since last year, North Korea has conducted about 100 ballistic missile tests in what outside experts call a bid to modernize its nuclear arsenal and win greater U.S. concessions. In response, the U.S. and South Korea expanded their military drills, strengthened security cooperation with Japan and increased the temporary deployment of powerful U.S. military assets such as bombers and nuclear-powered submarines in South Korea.

Despite its torrid run of ballistic missile tests, North Korea has avoided new international sanctions as China and Russia, both permanent members of the U.N. Security Council, stymied any council responses to the North鈥檚 testing activities. In Tuesday over the North鈥檚 ICBM launch, North Korean and Russian diplomats clashed with U.S., South Korean and other diplomats.

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