Hi there Tofino87,
I must say that of all the major airports in the world, I would rate HND as operating as one of the best. So much so that I do not even worry about connection times there now. 2 hrs is ample!!
Having said that, the Ukraine thing and perhaps lengthier routes into HND could cause a problem. But not if you still have 2 hrs.
My understanding from your posts is that you are travelling in late May - so a couple of months out? My "throw-away" personal opinion is that in two months either (a) the Ukraine thing will be resolved, or (b) it will have escalated into a nuke confrontation where all bets are off, and noone is flying except for emergent reasons

In either case you will be fine