President Donald Trump switched his new Qatari-gifted Air Force One for his flight from the NATO summit to the United Kingdom over concerns that the gifted aircraft lacks the secure communications systems and military defenses needed to safely manage a rapidly escalating conflict with Iran, according to two former national security officials familiar with the matter.

Instead, Trump flew from Ankara to a U.S. base in the United Kingdom in his original Air Force One. It was during that flight that Trump authorized additional strikes against Iran, following through on a threat he had made earlier that day to end the on-again, off-again ceasefire.