Battle of Danny Boy took place close to the city of Amarah in southern Iraq on 14 May 2004, between British soldiers and about 100 Iraqi insurgents of the Mahdi Army. The insurgents ambushed a patrol of Argyll and Sutherland Highlanders close to a checkpoint known as Danny Boy near Majar al-Kabir. The Argylls called in reinforcements from the 1st Battalion of the Princess of Wales's Royal Regiment; the latter were also ambushed and due to an electronic communications failure it was some time before further British relief arrived.
Battle of Danny Boy occurred between British forces and Mahdi Army insurgents near Amarah, Iraq on May 14, 2004. The Argylls requested support from the Princess of Wales's Royal Regiment, which was also attacked and experienced a delay in receiving further aid.