The U.S. for the first time has approved the direct delivery of Stinger anti-aircraft missiles to Ukraine as part of a package approved by the White House last week.
A KC-46A and F-35As join several other U.S. military aircraft at the show, including a U.S. Navy Boeing P-8A Poseidon multimission aircraft on static display.
The main entrance to Naval Air Station North Island near San Diego was closed after a driver was found with bomb-making materials, a military spokesman said.