NBC News reports that “a six-day joint exercise between U.S. and Chinese troops is underway, amid a warning to Congress that Beijing’s growing military might is posing a serious threat to national security.”

“The exercise involving 89 U.S. soldiers and 134 counterparts from the Chinese People’s Liberation Army is the first since the election victory of President-elect Donald Trump, who has vowed to rebuild U.S. military strength in the face of China’s assertive policies in Asia.”

“The drill aims to improve cooperation in rescue operations and involves ‘live troop exercises,’ with U.S. and Chinese soldiers working on disaster relief tasks, such as personnel extraction from debris, according to Chinese and U.S. officials.”