How many Irish died in war of independence?

During the Irish War of Independence (1919-1921), it is estimated that approximately 1,400 Irish freedom fighters (known as "republicans") were killed in action. These casualties include members of the Irish Republican Army (IRA), civilians killed by British forces during the conflict, and those who died in retaliatory attacks by the IRA. The exact number of Irish deaths during the war is still a subject of research and debate.