He joined Irish Republican Army in 1920, during the Irish War of Independence. He was opposed to the 1921 Anglo-Irish Treaty and he fought on the Republican side in the Irish Civil War. He refused a state pension because he considered the 26-county Republic of Ireland an illegitimate state which usurped the 1916 Irish Republic.
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1920 On this day in 1920, Britain began recruiting “men willing to face a rough and dangerous task” to give a needed boost to the British battle against the Irish Republican Army.