Amid increasingly tense Sino-U.S. ties, John Bolton, a former American ambassador to the U.N. and a top adviser to President-elect Donald Trump, has called for a closer U.S. military relationship with Taiwan to help counter a "belligerent" Beijing.

In a commentary published Tuesday in The Wall Street Journal likely to stoke anger in China, Bolton said Washington "could enhance its East Asia military posture by increasing U.S. military sales to Taiwan and by again stationing military personnel and assets there."

In the commentary, Bolton also noted that the stationing of U.S. military personnel in Taiwan could help alleviate other problems in East Asia, including in Okinawa Prefecture, which hosts the bulk of U.S. forces in Japan.