Against overwhelming odds, Royal Air Force pilots fend off the Luftwaffe during the Battle of Britain and ward off German invasion of the British Isles. The Luftwaffe loses 1,733 aircraft and crews.
Navy Adm. Samuel J. Paparo Jr. assumed leadership of the U.S. Indo-Pacific Command, succeeding Navy Adm. John Aquilino at a change of command ceremony, urging action amid China's “increasing intrusive and expansionist claims,” on May 3