Why did the U.S. and Israel carry out strikes on Iran?

Strategic aims and immediate justification

A coordinated U.S.-Israeli military campaign targeted Iranian leadership, military infrastructure and missile capabilities over the weekend. Officials in Washington and Jerusalem framed the strikes as both a direct response to perceived threats and an effort to degrade Tehran’s ability to project force across the region.

Intelligence and operational factors

The operation followed months of intelligence collection to identify high‑value targets. U.S. agencies and Israeli services shared surveillance that planners used to time strikes against leadership locations and ballistic missile sites. The Pentagon said the strikes focused on missile and naval assets that posed a tangible threat to regional shipping and allied forces.

Political and security objectives

• Reduce Iran’s immediate capacity to strike U.S. forces and allies in the Gulf and Levant.
• Eliminate senior regime figures to disrupt command-and-control and deter future attacks.
• Signal resolve to regional partners and adversaries.

Consequences and contested claims

The strikes killed Iran’s supreme leader and other senior figures, a move that dramatically escalated the conflict and prompted widespread regional retaliation. U.S. forces suffered casualties in ensuing strikes, and several naval, air and commercial targets in the Gulf were hit or threatened, disrupting shipping and air travel. The operation has also triggered intense debate in Washington over war powers and the strategic wisdom of regime‑targeted strikes. While the military objectives were described as degrading Iran’s capabilities, the broader political outcome—whether it weakens Tehran’s will or hardens resistance and widens the war—remains uncertain.