Drumcondra ambush

The Drumcondra ambush (Irish: Luíochán Dhroim Conrach) was an attempted ambush carried out the Irish Republican Army (IRA) in Drumcondra, a suburb in northern Dublin, during the Irish War of Independence. On 21 January 1921, an IRA active service unit (ASU) initially set up an ambush near the Royal Canal in preparation for a British lorry which was travelling through the area. When the lorry failed to arrive, Frank Flood, the unit's commander, relocated his men up to a new position along the Tolka river. However, the IRA unit was spotted as they were setting up their new positions and a force of Auxiliaries was sent out, which resulted in 1 volunteer being killed and 5 others being arrested as they were attempting to escape.

Flood, Thomas Bryan, Patrick Doyle, Bernard Ryan, were sentenced to death and later hanged. The 4 men along with 6 other volunteers who met the same fate would later become known as the Forgotten Ten.