June 13, 2025: Israel launched a large-scale, preemptive airstrike—dubbed Operation Rising Lion—against Iran’s nuclear facilities and military assets, including sites in Tehran, Natanz, Fordow, Isfahan, Arak, and Tabriz apnews.com+3cbsnews.com+3foxnews.com+3apnews.com+13en.wikipedia.org+13time.com+13.

The strikes reportedly killed top Iranian figures: IRGC chief Hossein Salami, Armed Forces Chief Mohammad Bagheri, and senior nuclear scientists reuters.com+5en.wikipedia.org+5en.wikipedia.org+5.

Explosions were heard in Tehran; sirens sounded across the city, and emergency protocols likely initiated apnews.com.

Iran’s response

Iran retaliated with a major strike: launching over 100 ballistic missiles and 100+ drones targeting Israel (including Tel Aviv and Jerusalem) youtube.com+15en.wikipedia.org+15apnews.com+15.

Israel’s air defenses—Iron Dome, Arrow system, plus U.S.-deployed assets—intercepted most, though several missiles penetrated and caused injuries to civilians .

Is it an official war?

While not formally declared, both sides characterize this as a war-level escalation. Iran labeled Israel’s attack a “declaration of war,” and Khamenei and other leaders have vowed punishing retaliation .

Israel’s PM Netanyahu stated the operation will continue “as long as necessary” to neutralize the Iranian threat barrons.com+2ft.com+2apnews.com+2.

Global and U.S. role

The U.S. says it was informed in advance but did not participate directly theguardian.com+2barrons.com+2wtop.com+2.

However, U.S. military assets were used to help intercept Iranian missiles, and U.S. bases in the region have been put on alert wtop.com+2apnews.com+2apnews.com+2.

✅ Your claims vs confirmed facts

"Emergency siren sounds in Tehran": ✅ Confirmed—sirens and explosions reported washingtonpost.com.

"15 air‑strikes on Tehran": Israel reportedly hit dozens of targets including multiple sites in Tehran and beyond—likely more than 15 separate strikes .