The US-Iran conflict has seen a series of significant events over the years. Here is a timeline of key developments leading up to June 2026.
Early Tensions
In 2018, the United States withdrew from the Joint Comprehensive Plan of Action (JCPOA) and reimposed sanctions on Iran. This led to increased tensions between the two nations.
2020: Escalation
In January 2020, the US killed Iranian General Qasem Soleimani in a drone strike in Baghdad. Iran retaliated by launching missiles at US bases in Iraq. No US casualties were reported, but the incident brought the countries to the brink of war.
2021-2023: Diplomatic Efforts
During the Biden administration, indirect talks took place in Vienna to revive the nuclear deal. However, negotiations stalled over issues such as sanctions relief and Iran's nuclear advancements.
2024: Increased Hostilities
In 2024, Iran accelerated its uranium enrichment program, prompting the US to deploy additional military assets to the Persian Gulf. Several skirmishes occurred between Iranian speedboats and US Navy vessels.
2025: Proxy Conflicts
By 2025, proxy conflicts intensified in Yemen, Syria, and Iraq. Iran-backed Houthi rebels targeted Saudi oil facilities, while US-supported forces clashed with Iranian militias in Syria.
2026: Direct Confrontation
In early 2026, a series of incidents led to direct military confrontation. On March 15, 2026, Iran shot down a US drone over the Strait of Hormuz. The US responded by bombing Iranian air defense sites. In April, Iran attacked a US base in Iraq with ballistic missiles, killing three US soldiers. The US then launched airstrikes on Iranian nuclear facilities.
As of June 2026, the conflict remains unresolved, with both sides continuing to exchange threats and engage in military posturing.



