As President Joe Biden traveled in Europe on Thursday for NATO meetings linked to Russia’s invasion of Ukraine, the so-called “Doomsday Plane,” a U.S. Air Force E-4B Nightwatch, wasn’t too far away.
Designed to serve as a flying war room, one of four E-4Bs—officially dubbed the National Airborne Operations Center (NAOC)—was spotted this week by ADS-B tracking apps en route from the U.S. to Europe in advance of Biden’s Air Force One flight to NATO headquarters in Brussels. On Thursday, apps tracked the plane—call sign GRIM99—over England.
