US Army

This is the first time that US troops have been killed by enemy fire in the Middle East since the beginning of the war in Gaza.

Prior to the war, Hamas's strength lay at around 30,000 fighters. Last week, the IDF reported that 9,000 of this total had been killed.

Since the Israel-Hamas war began last October, the US military has come under attack at least 100 times in Iraq and Syria, usually with a mix of rockets and attack drones.

The flyover came on the eve of Republika Sprska Day, a separatist holiday unrecognized by the Constitutional Court of Bosnia.

The US military carried out retaliatory air strikes in Iraq after a drone attack earlier by Iran-aligned terrorists that left one US service member in critical condition, and two others wounded.

A US base in Iraq's Erbil that houses US forces came under attack from a one-way drone earlier on Monday, leading to the latest US casualties.

A statement by the Islamic Resistance in Iraq, an umbrella group representing several Iraqi armed factions with close ties to Tehran, said five of its members had been killed, and vowed retaliation.

So far, at least 56 US personnel have suffered everything from minor wounds to traumatic brain injuries, though all have returned to duty, the Pentagon has said.

A Houthi military spokesperson said they shot down the drone in airspace over Yemeni territorial waters.

US officials have said 10 Americans who remain unaccounted for may be among the more than 200 people taken as hostages into Gaza.