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Four experts discuss what Washington can do about the latest spike in militia attacks against U.S. bases and local partners—even as they try to sustain the counterterrorism mission against the Islamic State.

Washington has signaled that its patience is wearing thin with the group's pivotal role in two dozen attacks on U.S. forces in Iraq and Syria in a month.

Kataib Sayyid al-Shuhada's designation for terrorist activities is long overdue, reflecting its important ongoing role in attacks on U.S. forces in northern Iraq and eastern Syria.

The combination of highly motivated young extremists on the ground, supportive far-right politicians back home, and ineffective local security measures may stoke a full-scale uprising if authorities continue to look the other way.

One of the most well-established Iraqi volunteer militias to fight for Iran and the Assad regime, both in the Syrian civil war and during various anti-U.S. actions.

Tehran is seemingly redoubling its efforts to equip Hezbollah and other regional allies with advanced air defense systems, which could affect Israeli and U.S. calculations in the Gaza war and beyond.

Four experts and former officials discuss the evolving military operation against Hamas, the status of the Lebanon front, the political plight of Arab governments, and the steps Israel must consider to balance its goals with growing international pressure.

The group's earliest reactions to the war were led by its Special Operations wing under Abu Hussein and two spokesmen from his camp.

Hossein Moanes and Abu Fadak have carefully calibrated their threats, showing a multifaceted yet tightly controlled Kataib Hezbollah response.

One of the largest Iraqi-Syrian militias, developed by Iran's IRGC-QF to support regime and proxy objectives in and around Syria.

In his highly anticipated first speech since the Hamas massacre, Secretary-General Nasrallah can be expected to offer plenty of bluster and a possible step up the escalation ladder, but his group has an interest in avoiding all-out war.

This Syrian militia based in Aleppo and Deir al-Zour has developed a uniquely close relationship with Iran's Islamic Revolutionary Guard Corps and the Assad regime.

Iraqi "resistance" elements are becoming more bellicose in their rhetoric against the American presence, signaling a new level of escalation against U.S. troops as part of their efforts to support Hamas in the Gaza war.

The energy sector is one indicator of the heavy costs the region will pay in the event of a wider conflict, with some effects already measurable in certain countries.

Asaib Ahl al-Haq, Harakat Hezbollah al-Nujaba, and their facade group partners may soon step up their attacks amid the Hamas-Israel war, albeit within limits set by Iran.

This Ougaidat tribal militia has undertaken attacks on multiple Syrian Kurdish and U.S. sites, with support from Iran's Islamic Revolutionary Guard Corps and the Assad regime.

The "Jazira" brand has begun claiming, through very transparent communiques, that it is undertaking rocket attacks on U.S. bases in Syria.

An Iran-aligned group that presaged two previous drone attacks on Gulf cities has issued a new threat against U.S. targets in Kuwait and the United Arab Emirates.

The Telegram brand that emerged in October 2023 is not a group per se, but rather a generic name used to denote unity among Iran-backed armed groups and deemphasize their individual identities during attacks spurred by the Gaza war.

A new Telegram account claiming anti-U.S. attacks is linked to Iran's Qods Force and other designated terrorist organizations.