Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Will US Make Clear-cut Commitment to Defend Taiwan From China? John Xie For almost 70 years, the United States has never explicitly committed itself to the defense of Taiwan against Chinese invasion. Now, with U.S.-China relations at a historic low, worries over a Chinese assault on Taiwan are growing, and the fundamental U.S. policy may be changing. An increasing number of military analysts and members of Congress now argue that it is time for the United States to revisit its policy of "strategic ambiguity" for Taiwan's defense, which for decades has supported billions of dollars in arms sales despite no formal diplomatic relations. Critics of the policy point out that as the region's military balance moves in China's favor, strategic ambiguity is increasingly unsustainable. "It might actually make war even more likely, emboldening Xi Jinping and the CCP to undertake military action against the island by deluding themselves into thinking the U.S. might remain on the sidelines," Michael Hunzeke, a professor at George Mason University's Schar School of Policy and Government, told VOA in an email. "We need to change things on Taiwan to improve the deterrent and make clearer where we stand, especially by ending any remaining ambiguity about how we'd react to the use of force and altering our military force structure and posture," Elbridge Colby, a former deputy assistant secretary of defense, wrote in The New York Times early this week. Colby was an author of the Trump administration national defense strategy, which emphasizes competition with China and Russia. .