Japan, US and South Korea conduct ”air drills”... North Korean provocations intensify ”three-way military cooperation” = South Korea

North Korea has claimed to have successfully test-fired a new ICBM, the Hwasong-19, which it calls "the final version of the ICBM (intercontinental ballistic missile)" and "an ultra-powerful, absolute weapon."
In the midst of this, the three countries of Japan, the United States and South Korea conducted an aerial drill to send a warning message to North Korea. The South Korean Joint Chiefs of Staff said on the 3rd, "Today, the US strategic bomber B-1B was deployed to Jeju Island.
"The three countries conducted aerial training in an area east of the US-Japan ADIZ (Air Defense Identification Zone) where the two countries' ADIZs overlap," the statement said.
This is the fourth deployment of U.S. strategic bombers to the Korean peninsula this year, and Japan, U.S. and South Korea hold aerial drill
This is the second drill this year, and it appears that North Korea's repeated provocations are actually stimulating "military cooperation and strengthening among Japan, the United States and South Korea."
The Joint Chiefs of Staff said, "This training is a follow-up to the ICBM launch by North Korea on October 31.
"This is indicative of the viability of the ROK-U.S. alliance's integrated extended deterrence to respond to and deter the increasingly sophisticated nuclear and missile threats posed by North Korea, and of the strong will and determination to respond through ROK-U.S.-Japan security cooperation," he said.
"It shows the capabilities we have," he explained.