Precaution or Provocation ?
How about neither but just training just like the last couple of years.
If it will be limited to Ukraine ,I assure Russia will be the winner with Ukraine getting merged with Russia and will become a territory for Russian federation. If things get more ugly and whole NATO gets involved that means all Europe then there is a lot of uncertainty for Russia. That's also put everyone under the nuclear weapons risk.
Personally I want Ukraine and all NATO scums to be defeated by Russia and Ukraine oblast being part of mighty Russia.
Interesting times ahead.
Considering Russia's demands including Lativa, Lithuania and Estonia besides Ukraine, they want to rebuild the Soviet Union,