No, the Troubles was absolutely NOT a war by any means.
What we had was a terrorist campaign of unjustified murder with an alternative which was democracy.
WW1 and 2 was a war. Ukraine today is a war.
Northern Ireland? Not even close. We never actually descended into a civil war at all - a point well made by Hume, actually. Northern Ireland was not something like Lebanon by any means.
We were able to go to school, work and play. It's not like it was every day someone was murdered or a bomb set off. Society didn't collapse and the presence of the army ensured we didn't have a civil war.
None of this can actually happen in Ukraine.
The use of touts (informers) is little understood by the general public, but it's not really the case that they were let loose by the government to murder. Considering the infiltration and turning of IRA terrorists into touts was an important factor in their eventual defeat, the Republicans have an interest in muddying the waters on that aspect.
Sage Despatches seriously details a huge amount of information on the issue of touts aka informers aka Covert Human Intelligence Sources (CHIS) on their blog here:
https://sagedespatches.wordpress.com/2022/02/18/the-collusion-delusion-part-1/
News articles, Government reports, police reports, you name it.....it's all there. Even provides them for download too.
The defeat of any fundamentalist terrorist organisation cannot be done without the use of touts within their ranks. Every government everywhere understands this.
Stakeknife died just over a month ago as did the PIRA and RIRA terrorist Colm Murphy (1998 Omagh bomber).