The "Troubles" is a term for the conflict that began in 1916, ended with an ambiguous armistice in 1998 and rumbles on to this day

Cartoon of David Trimble and Gerry Adams by Steve Bell

[UPDATE - "Unfortunately, the "terrible beauty" they [Pearse and Connolly] spawned is even now to be seen in action in the blazing streets of Belfast" wrote John Banville]

Philip Bobbitt said that "Long War" is a term for the conflict that began in 1914 and concluded in 1990. Christopher Hitchens said the identical, that the global conflict that began in August 1914 did not conclusively end until the fall of the Berlin Wall and the Soviet Union.

My argument is that the Troubles should be a term for the conflict that began in 1916 and quasi-concluded in 1998 with an ambiguous armistice, embedded a little further in 2005 but continues to this day with an uneasy truce.

He's a quick overview of history.