US-Iran War — 2026-03-27

Israel Strikes Iranian Nuclear Facilities at Arak Heavy Water Complex and Ardakan Uranium Plant

Israeli warplanes struck multiple Iranian nuclear and industrial sites on March 27, hitting the Shahid Khondab Heavy Water Complex in Arak and the Ardakan yellowcake production plant in Yazd Province. The Israeli military described Arak as a key plutonium production site for nuclear weapons. Iran's atomic energy organization confirmed the strikes but stated no radioactive material was released and no casualties occurred at nuclear sites. Additional strikes damaged an electrical substation and alloy steel production line at the Mobarakeh complex and a warehouse at the Khuzestan facility.

Analysis
The Arak heavy water reactor was previously struck during the June 2025 conflict and again rebuilt. The repeated targeting of the same facility suggests Israel lacks confidence in permanent destruction via airstrikes alone, a factor likely driving the Pentagon's consideration of ground forces capable of seizing nuclear material, as reported in the troop deployment story.

4 sources

Iran says nuclear facilities hit by strikes after Israel warns attacks will escalate - Euronews
Izraelské údery zasáhly v Iránu jaderné zařízení a reaktor ve výstavbě - CTK
IDF confirms bombing Iran's heavy water reactor, key nuclear facility, in Arak - The Times of Israel
Israel strikes Iranian nuclear development facilities, Tehran vows retaliation - The Jerusalem Post