Irish War of Independence Irish nationalists, who were certain the men had been tortured then murdered. This day became known as Bloody Sunday. On 28 November 1920, only a week after Bloody Sunday in Dublin, the west Cork unit of the IRA, under Tom Barry, ambushed a patrol of Auxiliaries at Kilmichael in County Cork, killing all but one of the 18-man patrol. These actions marked a significant escalation of the conflict. In response, Counties Cork, Kerry, Limerick, and Tipperary – all in the province of Munster – were put under martial law on 10 December under the Restoration of Order in Ireland Act;
Cork–Limerick–Galway corridor closed for commercial traffic in 2016. Galway and Limerick are linked by the M18, and Limerick is linked to Cork by the N20. A motorway, the M20, is planned between Cork and Limerick. All three cities are connected to Dublin via motorway, Cork via the M8, Limerick via the M7 and Galway via the M6. The Western Rail Corridor links the three cities after recent major investment. The three cities are served by the Cork Suburban Rail, Limerick Suburban Rail and Galway Suburban Rail networks. Cork is served by Kent Station, Limerick by Colbert Station and Galway by Galway Station.