Yes but you asked me when was the time when NATO trained on the border with Russia, now you move the goalpost? I think Russian invading Crimea is despiseful and the referendum is fake because there was no campaign or anything, but I also understand that superpowers earn different treatments due to the fact that they can cause nuclear blasts and end the world in minutes. Russia invaded Crimea when the political sentiment in Ukraine started considering the sentiment of joining NATO/EU, https://en.wikipedia.org/wiki/Revolution_of_Dignity#United_S...

I think the issue is that US has been involved in the political environment of a EU bordering country, without any opposition from European leaders.

> Yes but you asked me when was the time when NATO trained on the border with Russia

No, I asked, and I will quote directly, “When was this time that Russia wasn't a threat and Ukraine was having trainings with NATO?”

That was the claim: that NATO conducted multiple trainings with Ukraine when Russia was not a threat, and that this was the casus belli for Russian aggression. Leaving aside that this would not be legitimate casus belli in any case, it is simply factually false: all the NATO trainings occurred during the war, after Russian aggression against Ukraine began. There cannot retroactively justify the aggression.

> all the NATO trainings occurred during the war, after Russian aggression against Ukraine began.

Wrong. NATO had at least one Partnership for Peace exercise in Ukraine in October 2002, a few hours drive from L'Viv.[1]

And just to be specific; this doesn't justify any aggression on Russia's behalf, sovereign nations are free to decide who to ally with.

[1] - https://www.nato.int/ims/2002/p021007e.htm