Against the background of the intensified U. S.-Chinese strategic competition in recent years, this paper examines the implications of the Ukraine war for security in the Asia- Pacific. Based on a qualitative analysis of hundreds of governmental documents, speeches and news articles, the study finds that both the United States and China have exploited the Ukraine war to double down on their strategic rivalry in the Asia- Pacific. The Biden administration has cast China and Russia as similar threats to the international order; intertwined Europe's problems with those of the Asia-Pacific; and pursued a global anti-authoritarian alliance directed against both Russia and China. China has become an increasingly uninhibited security- seeker as it has recognized its own rapidly deteriorating security situation; America's resolve to maintain its China policy; and a unique strategic moment in which to present itself globally as an anti-hegemonic, responsible great power. Given these developments, the security situation in the Asia- Pacific is becoming ever more volatile.