Air Force Space Command announces launch of GEO-1, the first Space Based Infrared System geosynchronous satellite. A United Launch Alliance Atlas V booster launched from Cape Canaveral AFS, Fla., carrying the Lockheed Martin satellite into orbit. GEO-1 joins SBIRS sensors already operating on host satellites. The Air Force expects SBIRS to complement and eventually replace its Defense Support Program missile warning satellites. (Lockheed Martin announces May 24 that GEO-1 has reached its operational orbit.)
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