Make me this in form of easy  summuraze lecture with clear language I'm sick I don't have time to memorize all things so focus on important ideas that can be in exam 
Britain's inconsistency, however, was not lost on Irish nationalists.Three-quarters of the IRA,
however, rejected the treaty, leading to the Irish Civil War (1922aEUR"1923). The Free
State Army, supported by Britain, defeated the IRA, but the IRA leadership ordered its
units to place their weapons in secret arms depots and to disperse without surrender. The defeated republicans embodied in the self-described "semi-constitutional" political
party Fianna FA!il ("soldiers of destiny") and with IRA electoral support, gained control
of the Irish Free State in the 1932 election.Although Griffith had nothing to do with the Easter Rising, the British termed it "the
Sinn FA(C)in Rebellion," as Sinn FA(C)in had become a pejorative term to describe all
nationalists who rejected home rule. In 1917 a new "Republican Sinn FA(C)in" emerged,
led by Eamon de Valera (1882-1975), the highest-ranking Irish Volunteer to survive the
Easter Rising and the subsequent executions.Britain later executed some of its
leaders.