Three nuclear-capable B-2 Spirit bombers were just sent to Guam in addition to the “several” B-1B Lancer bombers that were deployed there Saturday as tensions continue to rise with North Korea and in the South China Sea.

U.S. Strategic Command and Pacific Air Forces in Hawaii said Tuesday that during the “short-term deployment,” the stealthy B-2s, which flew from Whiteman Air Force Base, Mo., “will conduct local and regional training sorties, and will integrate capabilities with key regional partners.”

Gen. Terrence O’Shaughnessy, the new commander of Pacific Air Forces, said the bomber deployments “visibly demonstrate our readiness and commitment to the Indo-Asia-Pacific region.”

Air Force Secretary Deborah Lee James tweeted Wednesday that the overlap of the B-1s, which are replacing departing B-52 bombers, represented the first time that B-52s, B-1s and B-2s were simultaneously in the Pacific Command area of responsibility.

North Korea infuriated Japan with the Aug. 2 test launch of an intermediate-range No Dong ballistic missile that splashed down within Japan’s 200-nautical-mile exclusive economic zone. U.S. Strategic Command said it detected two launches, with one apparently exploding immediately after launch.

North Korea is increasing its missile tests and conducted its fourth nuclear test in January as it continues to advance its ballistic missile capability. U.S. bomber deployments to the region always get the country’s attention.

Both North Korea and China are upset with the decision to base a U.S. Terminal High Altitude Area Defense anti-missile system in South Korea. The reclusive North also sees the upcoming Ulchi Freedom Guardian Exercises with South Korea as a prelude to war. Last year’s version of the exercise involved 30,000 American and 50,000 South Korean troops.

KCNA, North Korea’s state news agency, said July 25 that while “stepping up the moves to deploy THAAD, the U.S. is busy staging ever more undisguised war drills.”

Meanwhile, Adm. Scott Swift, head of U.S. Pacific Fleet at Pearl Harbor, said Tuesday that China continues to take destabilizing steps in the South China Sea, including announcing it would conduct joint naval drills with Russia in the area for the first time in September, the Wall Street Journal reported.

China has added reinforced hangars for military aircraft in the disputed Spratly Islands, continuing its military buildup, while Vietnam reportedly has moved rocket launchers to bases it controls in the region as a counter to China.

The Air Force said “several” of the B-1B bombers, which can fly at more than 900 mph, were deployed to Guam on Saturday to replace B-52 bombers from Minot Air Force Base in North Dakota.

The B-1 bombers were to be accompanied by about 300 airmen from Ellsworth Air Force Base in South Dakota. Since 2004 bombers including the B-52, B-1 and B-2 have deployed to Guam as part of a Continuous Bomber Presence mission, but it’s the first time in 10 years that the B-1 is performing the job, the Air Force said.