Dismissively called 'Cogadh an Dá Ghall' (The War of the Two Foreigners) by some Irish speakers, the First World War saw the mobilisation of hundreds of thousands of Irish people as soldiers, sailors and nurses. The war brought massive suffering, heroism, personal liberation, profit and economic hardship, and also provided the conditions necessary for a rebellion against British rule. Using striking photographs from a wide range of sources, this book shows the experiences of the Irish at home and abroad as the 'Great War' raged across Europe.