Ammon News - One of America’s “doomsday planes” was spotted circling above a key Nebraska air force base on Monday — just hours before President Trump’s deadline for Iran to accept his peace deal is set to expire.

The Boeing E-4B Nightwatch — which was designed to protect national security officials and keep the government operating in a time of nuclear war — was spotted by flight trackers above the Offutt Air Force Base, home to the headquarters of the US Strategic Command.

The jet had taken off from Offutt at 10:17 a.m. EST, circling around the area at least six times before landing back at the base, the Daily Mail reported.

The aircraft’s movements are regularly monitored by flight trackers during high tension moments, with a flight last year garnering attention just days before the US joined Israel in the 12-day war campaign to bomb Iran’s nuclear facilities.

Trump has now set a deadline for Tuesday for Iran to agree to his peace plan and open the Strait of Hormuz or the US would destroy the Islamic republic’s power plants and bridges.

“The entire country can be taken out in one night, and that night might be tomorrow night,” Trump told reporters at the White House on Monday.

The US has a fleet of four E-4Bs that make regular flights year-round to maintain military readiness.

The Nightwatch serves as an airborne command center for the president, secretary of defense and the chairs of the Joint Chiefs of Staff to ensure continued critical command, control and communication in case of emergencies.

With 18 bunks, a briefing room, teamwork area, conference room, command room, and designated rest area spread across three decks, the aircraft is designed to be a “flying Pentagon” in the event of a national emergency.

The plane is heavily modified to withstand nuclear blasts, cyberattacks, electromagnetic pulses, and other disasters that could threaten the US.

Each E-4B Nightwatch can carry a crew of up to 112 people and has a range of more than 7,000 miles.

The aircraft also has thermal and nuclear shielding and can communicate with anyone anywhere in the world, thanks to the 67 satellite dishes and antennas contained in its ray dome.

NYP