Last reassembled in France in December before demobilisation, the 2nd Royal Munster Fusiliers numbered 25 officers and 581 other ranks.
After demobilisation by February, the last cadre of 14 officers and 54 other ranks left France in June 1919 and was reabsorbed into the reformed battalion on the Isle of Wight numbering 900 men, of these 500 with war service.
Their last commander wrote "Its losses amounted to 179 officers and 4,088 rank and file killed, wounded or missing.
There were twenty-eight changes in the battalion's command during the war.
The battalion retained its essentially Irish character to the end of the war, and was first to last composed of voluntarily enlisted soldiers.
During the war 346 officers and over 8,000 O.R.s passed through its ranks".
The 1st Royal Munster Fusiliers remained a predominantly Irish battalion to the end of the war, composed of many Dublin Fusiliers from May 1918.
At least 43 officers and 869 other ranks died in action with the battalion during the war.
It was demobilised in December, reducing it to 13 officers and 89 others, before leaving France.

In May 1919, after returning to England, the 1st Royal Munster Fusiliers absorbed the 3rd Royal Munster Fusiliers at Plymouth.
It left for Silesia in September 1921, returning the following April to be disbanded in July 1922, ending a history going back 250 years.
The 2nd Royal Munster Fusiliers served in Egypt from November 1919 to May 1922, returning for demobilisation and disbandment in July 1922.
Due to substantial defence cuts and the establishment of the Irish Free State in 1922 (predecessor of the Republic of Ireland), it was agreed that the six former Southern Ireland regiments would be disbanded, including the Royal Munster 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 had sent a Regimental engraving because the regiment chose to have its standard remain in St. Patrick's Cathedral, Dublin).
The six regiments were then all disbanded on 31 July 1922.

With the outbreak of the Irish Civil War, some thousands of the Irish regiment's ex-servicemen and officers contributed to expanding the Free State government's newly formed National Army.
In its ranks, Royal Munster Fusiliers ex–servicemen, veterans from World War I, served at the side of IRA ex-guerrillas who only a few months earlier had fought against the British Army in the Irish War of Independence.
They brought considerable combat experience with them and by May 1923 comprised 50 per cent of its 53,000 soldiers and 20 per cent of its officers.
The Irish National Army reached a strength of 60,000.
Last reassembled in France in December before demobilisation, the 2nd Royal Munster Fusiliers numbered 25 officers and 581 other ranks. After demobilisation by February, the last cadre of 14 officers and 54 other ranks left France in June 1919 and was reabsorbed into the reformed battalion on the Isle of Wight numbering 900 men, of these 500 with war service. Their last commander wrote "Its losses amounted to 179 officers and 4,088 rank and file killed, wounded or missing. There were twenty-eight changes in the battalion's command during the war. The battalion retained its essentially Irish character to the end of the war, and was first to last composed of voluntarily enlisted soldiers. During the war 346 officers and over 8,000 O.R.s passed through its ranks". The 1st Royal Munster Fusiliers remained a predominantly Irish battalion to the end of the war, composed of many Dublin Fusiliers from May 1918. At least 43 officers and 869 other ranks died in action with the battalion during the war. It was demobilised in December, reducing it to 13 officers and 89 others, before leaving France.
In May 1919, after returning to England, the 1st Royal Munster Fusiliers absorbed the 3rd Royal Munster Fusiliers at Plymouth. It left for Silesia in September 1921, returning the following April to be disbanded in July 1922, ending a history going back 250 years. The 2nd Royal Munster Fusiliers served in Egypt from November 1919 to May 1922, returning for demobilisation and disbandment in July 1922. Due to substantial defence cuts and the establishment of the Irish Free State in 1922 (predecessor of the Republic of Ireland), it was agreed that the six former Southern Ireland regiments would be disbanded, including the Royal Munster 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 had sent a Regimental engraving because the regiment chose to have its standard remain in St. Patrick's Cathedral, Dublin). The six regiments were then all disbanded on 31 July 1922.
With the outbreak of the Irish Civil War, some thousands of the Irish regiment's ex-servicemen and officers contributed to expanding the Free State government's newly formed National Army. In its ranks, Royal Munster Fusiliers ex–servicemen, veterans from World War I, served at the side of IRA ex-guerrillas who only a few months earlier had fought against the British Army in the Irish War of Independence. They brought considerable combat experience with them and by May 1923 comprised 50 per cent of its 53,000 soldiers and 20 per cent of its officers. The Irish National Army reached a strength of 60,000.
Royal Munster Fusiliers