Iran-Israel War: March 29 Update

Breaking News

Houthis target Israel with missiles as war spreads

Iranian-backed Houthi rebels in Yemen have officially launched their "first military operation" against Israel. The IDF confirmed they intercepted the incoming missiles. Houthi military spokesperson Yahya Saree also claimed a second wave of missile and drone attacks within 24 hours and vowed that their operations would continue.

Saudi airbase hit; dozens of U.S. troops injured

An attack by Iranian-aligned forces on the Prince Sultan Air Base in Saudi Arabia has left at least 12 to 24 U.S. personnel injured, with two in serious condition. Officials are calling this "one of the most significant breaches of U.S. defense" since the war began on February 28. U.S. Marines have since been deployed to the region.

Israel strikes Tehran; nuclear sites hit

The IDF conducted extensive airstrikes on Tehran, with Iranian officials confirming that nuclear facilities were hit. While Israel has warned that its strikes will "expand and escalate," President Trump continues to claim that ceasefire negotiations are moving forward, creating a confusing mix of messages.

Military Developments

• U.S. Marines reinforce Middle East: Following the Saudi airbase attack, additional U.S. Marines have arrived in the region. The Pentagon is reportedly considering sending up to 10,000 more troops, the largest deployment plan since the conflict broke out.

• Houthis keep pressure on Israel: The Houthi rebels claimed a second attack on Israel using a mix of missiles and drones. Despite the IDF claiming these were intercepted, the Houthi threat of continued operations suggests the front line is stretching into Yemen.

• ISW Analysis: Iran shifting tactics: The Institute for the Study of War (ISW) reported on March 27 that Iran is adjusting its strategy to maximize impact after realizing the limitations of its mass missile-launch capabilities. Leadership within the IRGC is also undergoing reorganization following recent U.S.-Israel strikes.

• Tit-for-tat strikes continue: Israel and Iran are still exchanging fire. Israel has warned that it may target more strategic assets, including nuclear facilities, while Iran has vowed retaliation for any damage to its nuclear infrastructure.

2 sources

understandingwar.org

Iran Update Special Report, March 27, 2026 | ISW

understandingwar.org

Iran Update Special Report, March 23, 2026

Diplomatic & Political Trends

• Rubio: "War will end in weeks, no ground troops needed": Secretary of State Marco Rubio stated that U.S. military operations should conclude within weeks, not months, and that objectives can be met without ground troops. He also noted that talks are ongoing to unblock the Strait of Hormuz.

• Trump extends deadline for energy site strikes to April 6: President Trump has pushed back the deadline for strikes on Iran’s power grid from March 27 to April 6. This serves as a leverage tactic, pressuring Iran to guarantee the safety of oil tankers in the Strait of Hormuz. On social media, Trump ominously noted that "another 3,554 targets remain."

• Iran hardens stance on negotiations: Sources indicate that Iran has moved toward a more hardline position since the war began, with the IRGC exerting greater influence over decision-making. Tehran has rejected U.S. demands to limit its ballistic missile program, with one official declaring, "The U.S. is negotiating with itself. Iran will never negotiate."

Regional Impact

• Strait of Hormuz closure fuels market volatility: The continued blockade of the Strait of Hormuz has sent oil prices soaring and global stock markets reeling. With President Trump’s approval ratings dipping, analysts at Reuters suggest he is now facing a difficult choice: accept a flawed deal and pull out, or escalate the conflict and risk a long, drawn-out war.