President Biden bet that leaving Afghanistan would strengthen the United States in its competition with China. But he may have forgotten an important detail: this withdrawal threatens the Quad, a vital element of American strategy in Asia.
Comprised of America, Japan, India and Australia, the Quad was relaunched four years ago amid growing concern about a stronger China. On September 24, Biden will host the first in-person summit of the group’s leaders. The message is clear: Flanked by compatriot democracies, the United States is preparing to oppose Chinese belligerence. And the announcement on Wednesday of a new three-way defense pact between the United States, the United Kingdom and Australia makes the same point.