"It will survive way beyond November," Mr. Biden declared of the Quad as the leaders gathered at the Archmere Academy, his high school alma mater.

Leaders of Australia, India, Japan and the United States will announce plans for new security initiatives in the Indian Ocean on Saturday, when outgoing U.S. President Joe Biden hosts counterparts from the Quad grouping established due to shared concerns about China.

At their upcoming summit in Delaware, the leaders of the four Quad countries have an opportunity to build on long-running efforts to transform the grouping into one that is more sustainable,