U.S. Military planning for possible weeks-long war against Iran once Trump gives the order

The U.S. military is reportedly developing plans for a potential extended campaign against Iran that could last several weeks if President Donald Trump authorizes an attack, according to two U.S. officials familiar with the matter, Reuters has reported.

The preparations indicate that any conflict could escalate far beyond previous skirmishes between the two nations.

Officials said the planning extends beyond limited strikes on nuclear sites and could target broader elements of Iran’s state and security infrastructure. U.S. forces already stationed in the Middle East are being reinforced with additional troops, fighter jets, guided-missile destroyers, and a second aircraft carrier.

The military buildup coincides with ongoing diplomatic efforts, as envoys from both countries are preparing to meet in Geneva under mediation to address longstanding disputes over Iran’s nuclear program. U.S. officials, however, acknowledge that reaching an agreement remains difficult and expect Iran to retaliate in the event of military action. Such retaliation could set off a cycle of strikes and counterstrikes, with potentially wider regional consequences.

Within the U.S. government, Trump has emphasized that all options remain on the table, with the White House stating that decisions will be guided by national security considerations. The Pentagon has declined to comment on the specifics of operational planning.

Experts warn that a prolonged military campaign could pose significant risks to U.S. forces due to Iran’s large missile arsenal and strategic depth, increasing the possibility of a broader regional conflict if hostilities erupt.