> That's somewhat debatable, if you mean 'expansionist' like Russia would like to rebuild the USSR or a new Russian Empire.
It's not debatable, Putin said in the recent press-conference that "they're lost Ukraine and other Soviet republics", effectively claiming other countries as "runaway" parts of Russia.
And as for NATO "expansion" - Russians can blame themselves for attacking Baltic states in 90s or messing things up in Moldova, trying to be a 'peacekeepers' there.