Relations (1)

cross_type 2.32 — strongly supporting 4 facts

The U.S. and the Islamic State are related through their adversarial relationship, as both are identified as enemies of Iranian-backed militias [1] and through the U.S. government's historical involvement in the region, which inadvertently contributed to the rise of the Islamic State {fact:2, fact:3, fact:4}.

Facts (4)

Sources
War by Proxy: Iran's Growing Footprint in the Middle East - CSIS csis.org CSIS 2 facts
claimFollowing the start of the Syrian civil war in 2011, Iranian leaders expressed concern regarding the rise of Sunni extremist groups like the Islamic State and the support provided to Syrian rebel groups by the United States, European nations, and Gulf states.
claimFollowing the onset of the Syrian civil war in 2011, Iranian leaders became alarmed at the rise of Sunni extremist groups like the Islamic State and the support provided by the United States, European nations, and Gulf states to Syrian rebel groups.
Iran's 'Axis of Resistance': The proxy forces shaping Mideast conflicts latimes.com Los Angeles Times 1 fact
claimIranian-backed Shiite militias are distinct from and sectarian foes of Sunni militant organizations like Al Qaeda and the Islamic State, despite a shared enmity toward the United States and Israel.
The crises in the Middle East: reshaping the region's geopolitical ... link.springer.com Springer 1 fact
accountUnited States efforts to form alliances with Sunni groups in Iraq and Syria after the Arab Spring resulted in the strengthening of fundamentalist groups such as Al-Qaeda and ISIS.