... to Dublin in 1916 to take part in the planned insurrection of Easter Week. His involvement in the rising was minor, however, as a consequence he spent seven months in Frongoch internment camp in Wales. The British unwittingly strengthened the IRB through the placement of the Easter rebels in such camps, where they were able to devise strategies against the British and recruit men to their nationalist cause. Following his release Collins came to be increasingly involved in the Irish struggle. In 1917 he was elected to the Sinn Fein executive. He helped rebuild the IRB and in 1919 became President of the IRB Supreme Council. The idea of small bands of men named 'flying columns' fighting in guerrilla style warfare, attacking specific targets was proposed by Collins. The effectiveness of the 'flying columns' is not doubted. They were able to 'choose their own battle-site, remain mobile and avoid encirclement, ...

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