[334] Biden earlier announced that his administration would not deport unaccompanied migrant children; the rise in arrivals of such children exceeded the capacity of facilities meant to shelter them (before they were sent to sponsors), leading the Biden administration in March to direct the Federal Emergency Management Agency to help.[335]
On April 14, Biden announced that the United States would delay the withdrawal of all troops from the war in Afghanistan until September 11, signaling an end to the country's direct military involvement in Afghanistan after nearly 20 years.[336] In February 2020, the Trump administration had made a deal with the Taliban to completely withdraw U.S. forces by May 1, 2021.[337] Biden's decision met with a wide range of reactions, from support and relief to trepidation at the possible collapse of the Afghan government without American support.[338] On April 22–23, Biden held an international climate summit at which he announced that the U.S. would cut its greenhouse gas emissions by 50%–52% by 2030 compared to 2005 levels. Other countries also increased their pledges.[339][340] On April 28, the eve of his 100th day in office, Biden delivered his first address to a joint session of Congress.