sentences:  In 1893 he joined Clan na Gael, an Irish organisation based in America committed to aiding the establishment of an independent Irish state.Clan na Gael had been heavily involved with the Fenian Brotherhood that McGarrity had grown up hearing about, and by the latter half of the 19th century had become a sister organisation of the Irish Republican Brotherhood.In the decade just before McGarrity joined, Clan na Gael and the Fenian movement had waged the Fenian dynamite campaign, where they attempted to force the British state to make concessions on Ireland by bombing British Infrastructure.