Institute for the Study of War

Institute for the Study of War

@thestudyofwar.bsky.social

ISW is a policy research organization focused on U.S. national security. Email: press@understandingwar.org. For more: https://linktr.ee/understandingwar

98,498 Followers 420 Following 7,345 Posts Joined Oct 2023
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4/ Hezbollah claimed 43 attacks targeting Israeli forces and positions in northern Israel and southern Lebanon, as well as northern Israeli towns. This marks the highest number of attacks that Hezbollah has claimed in a 24-hour period since the start of the war.
isw.pub/IranUpdate03...

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3/ The United States struck Iranian military infrastructure on Kharg Island in Bushehr Province on March 13, in part to degrade Iran’s ability to threaten shipping in the Strait of Hormuz.

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2/ Neither Iran nor the United States is prepared to hold discussions to reach a ceasefire despite mediation efforts by Oman and Egypt, according to Iranian, regional, and White House officials speaking to Reuters on March 14.

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NEW | Iran Update: Israeli and US officials told Axios on March 13 that Israel is planning to “significantly expand” its ground campaign in Lebanon to dismantle Hezbollah infrastructure south of the Litani River. isw.pub/IranUpdate03...

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3/ UA forces are intensifying their mid-range strike campaign, increasing their ability to contest RU missile strikes, degrade RU air defenses, and disrupt offensive operations ahead of an expected RU spring-summer 2026 offensive.

UA forces maintained positions or recently advanced near Slovyansk.

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2/ Ukrainian forces continued long-range strikes against Russian military and oil infrastructure overnight on March 13 to 14.

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NEW: Russian forces conducted a large-scale series of drone and missile strikes against Ukraine on the night of March 13 to 14 that caused significant civilian casualties in Kyiv City.

Russian Offensive Campaign Assessment, March 14, 2026: isw.pub/UkrWar031426

More Key Takeaways ⬇️ (1/3)

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6/ ISW-CTP will provide further analysis on the war with Iran in its March 14 Iran Update Special Report this evening.

Read ISW-CTP's latest analysis about the war here: understandingwar.org...

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5/ The IDF struck air defense system production sites in Tehran & by Karaj on March 14 to degrade Iran’s ability to rebuild an air defense network. The IDF struck a diesel engine manufacturing co near Tabriz, a subsidiary of the US-sanctioned Industrial Development & Renovation Organization of Iran.

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4/ Iran targeted energy infrastructure on March 14, incl a drone attack on the UAE’s Fujairah Port, one of the largest oil storage facilities in the region. The US-Israeli combined force has significantly limited Iran’s ability to retaliate as it has degraded Iran’s missile & drone capabilities.

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3/ Trump stated that the United States did not “wipe out” Iranian oil infrastructure on the island but warned that the United States could decide to do so if Iran continues to disrupt shipping in the Strait of Hormuz.

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2/ An OSINT account geolocated CENTCOM footage that shows that the United States struck Kharg Airport, the Kharg Air Defense Complex, and a Matla ul Fajr radar on Kharg Island.

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NEW: The United States struck 90+ military targets, including missile and naval mine storage facilities, on Kharg Island on March 13. US President Donald Trump stated that the United States did not target Iranian oil infrastructure on the island. (1/6)

Read our Iran Updates: understandingwar.org...

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3/ Israeli officials are reportedly discussing the potential expansion of Israeli ground operations in Lebanon. Israeli media reported that Israeli security & defense officials are examining several options, ranging from an expansive ground operation reaching the Litani River to more limited actions

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2/ Iran is selectively allowing some ships to transit through the Strait of Hormuz. Iran seems to be trying to disrupt commercial shipping with missiles and drones while avoiding the economic and political consequences of mining the Strait completely. isw.pub/IranUpdate03...

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NEW | Evening Iran Update: The US-Israeli combined force continued to target Iranian internal security infrastructure on March 13 in order to degrade the regime’s repressive capabilities. The combined force has continued to target Iranian defense industrial sites across Iran. isw.pub/IranUpdate03...

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8/ Russian Offensive Campaign Assessment, March 13, 2026: isw.pub/UkrWar031326

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7/ Ukrainian forces struck Russian chemical and oil infrastructure. Russian forces launched one Iskander-M missile and 126 drones against Ukraine, including Kharkiv, Mykolaiv, and Odesa oblasts.

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6/ Russian President Vladimir Putin’s replacement of the Russian Ministry of Internal Affairs’ (MVD) first deputy minister likely signals a reshuffling of the MVD.

Ukrainian forces recently advanced in the Kostyantynivka-Druzhkivka tactical area.

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5/ Ukrainian Commander-in-Chief Colonel General Oleksandr Syrskyi provided details on the end strength goals of the Russian Unmanned Systems Forces (USF) and Russian first-person view (FPV) drone production.

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4/ The global oil price shock from the war in Iran has likely invalidated elements of those assumptions.

Swedish authorities boarded on March 12 a tanker that may be part of the Russian shadow fleet and has previously shipped petroleum from Russia.

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3/ ISW’s previous forecasts that compounding economic costs would force the Kremlin to make difficult decisions in 2026 and 2027 assumed that the trend of Russian economic downturn would remain true.

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2/ The elevated price of oil and the US decision to ease sanctions on Russia will provide Russia with greater flexibility and support the Russian domestic economy, Russian force generation, and the Russian defense industrial base (DIB).

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NEW: The United States lifted sanctions on Russian oil that is already on tankers at sea until April 11, 2026, a decision that will buttress the Russian war economy. 🧵(1/8)

Russian Offensive Campaign Assessment, March 13, 2026: isw.pub/UkrWar031326

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Preview
Iran Update Morning Special Report, March 13, 2026 The Israel Defense Forces (IDF) struck multiple internal security sites in Khuzestan Province in southwestern Iran overnight

4/ CENTCOM announced on March 12 that six US servicemembers died in an incident involving a US KC-135 refueling tanker and another aircraft in “friendly airspace” in western Iraq.

Iran Update Morning Special Report, March 13, 2026:

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3/ The combined force has also continued to target Iranian ballistic missile infrastructure. Two Western assessments on March 12 estimated that combined force strikes have destroyed around 60 percent of Iran’s missile launchers

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2/ The US and Israeli combined force has continued to target Iranian air defense systems in order to degrade Iran’s ability to defend against attacks. Bloomberg, citing Israeli assessments, reported on March 12 that US-Israeli strikes have destroyed up to 80 percent of Iran’s air defenses.

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NEW: The Israel Defense Forces (IDF) struck multiple internal security sites in Khuzestan Province in southwestern Iran overnight on March 12 and 13.

Read more: isw.pub/IranUpdate03...

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Japan: Japan is increasing its ability to conduct long-range anti-ship strikes that could significantly constrain the PLAN’s ability to operate in the western Pacific during wartime.
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The pause in activity may indicate a significant shift in the PRC’s military coercion of Taiwan, in combination with short-term political factors reducing PLAAF activity.
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