Iran-US tensions have escalated sharply as Tehran warns of a regional war amid increased American military deployments. Iran’s warning of military action against the United States has escalated significantly. Khamenei warned that an attack by the US could lead to a broader war in the Middle East. This warning comes on the heels of increased military deployment by the US to the region. As part of this deployment, the US has sent multiple aircraft carriers and warships to the vicinity.

President Trump continues to pressure Iran to cease its pursuit of nuclear weapons and to quell its domestic unrest. As such, Iran has attempted to engage the US diplomatically, while at the same time issuing military threats because of the high domestic unrest it is experiencing.
Both domestic protests and violent crackdowns by security forces are occurring in multiple locations in Iran; according to NGOs, nationwide civilian casualties have been dramatically increasing in recent weeks.
Military buildup and diplomacy collide amid Iran-US tensions
Khamenei issued a direct warning to Washington about escalating military conflict. Khamenei stated, “The Americans should know that if they start a war, this time it will be a regional war.” Both Khamenei and Trump talked about the possibility of negotiations resulting in acceptable outcomes, and Iranian security officials also announced progress toward developing the negotiation framework. Washington also increased its regional force presence in the area while ongoing discussions took place. US Central Command confirmed they were still operating in surrounding waters, while Iran claimed these acts were simply meant to intimidate the Iranian people. Iranian officials stated they would take strong action against any future acts of harassment.
Protests, casualties, and mounting regional risk
Iranian officials characterized the protests occurring across the country as a coup. Khamenei charged that protesters had attacked governmental institutions and the state itself, while authorities arrested tens of thousands of demonstrators. Human rights organizations have estimated that thousands of people have died as a result of these actions, although the Iranian government has reported substantially fewer casualties than they have. President Trump linked military threats to the protests and has warned Iran to immediately cease its nuclear program. Currently, the stability of the region will depend on the use of restraint and diplomacy.