Due to substantial defence cuts, and the establishment of the Irish Free State (the predecessor of the Republic of Ireland) in 1922, it was agreed that the six former Southern Ireland regiments would be disbanded, including the Royal Dublin Fusiliers. On 12 June, five regimental Colours were laid up in a ceremony at St George's Hall, Windsor Castle in the presence of HM King George V. (The South Irish Horse sent a Regimental engraving because the regiment chose to have its standard remain in St Patrick's Cathedral, Dublin). The Dublin Fusiliers detachment included the commanding officers of the 1st Dublins and 2nd Dublins, lieutenant-colonels C. N. Perreau and G. S. Higgingson, who had been captured in France during the first year of World War I, and the regiment's Colonel-in-Chief, the Duke of Connaught. The Colours remain there as of 2005. The six regiments were all disbanded on 31 July 1922. With the outbreak of the Irish Civil War conflict some thousands of their ex-servicemen and officers chose to enlist in the Free State government's newly formed National Army. The British Army veterans brought considerable combat experience with them and by May 1923 comprised 50% of its 53,000 soldiers and 20% of its officers.