BAGHDAD - A prominent Iraqi militia backed by Iran, Harakat Hezbollah al-Nujaba, said on Thursday US President Donald Trump's decision to recognize Jerusalem as Israel's capital could become a 'legitimate reason' to attack US forces in Iraq. 'Trump's stupid decision ... will be the big spark for removing this entity (Israel) from the body of the Islamic nation, and a legitimate reason to target American forces,' the group's leader Akram al-Kaabi said in a statement.