The Curragh incident was the first military action in connection with the Home Rule Bill - both that and the Government reaction to it showed that Ireland would never get Home Rule without meeting military resistance - from the top level.
Had the "betrayal" not taken place Irish youth would have suffered the same fate as British youth on the killing fields of Europe leaving the country devoid of a viable population.
WW! was an Imperial War fought in defence of the same Empire Ireland had spent centuries attempting to free itself from.
Any "support" for it was, as in Britain, an alternative to mass poverty and unemployment and a promise of a short, easy war, pretty uniform and regular meals - those who opposed the rebels did so because they adopted the attitude that the sooner it was over the better - when the facts became known they did a complete about turn - within a couple of months and participated in a War of Independence of their own.
They are all the facts, not just selected ones.
WW1 was never Irish otherwise Britain would have introduced compulsory conscription, as it had in the rest of Britain.
The Church had a massive influence on those who joined up - The Bishop of Dublin led a campaign to support 'Gallant Little Belgium' (I actually saw one of his posters last year in The National Library in Dublin).
As I said, the same con both sides of the Irish Sea.
Jim Carroll