The Russians built the largest nucleur weapon of all time just a year or two ago. Its hardly an escalation when other countries are doing the same thing.
https://commons.wikimedia.org/wiki/File:Map_of_NATO_chronolo...
http://iran-si.org/images/docs/000001/001067/images/NATOExpa...
Then Google for US and NATO military bases.
https://en.wikipedia.org/wiki/Tsar_Bomba
[NB And making really big H-bombs isn't that difficult or indeed very useful other than for bragging rights - which was the point of this device].
Interestingly, it appears to be propaganda only intended for internal consumption in former USSR.