I don’t know why anyone is surprised that Russia has gobbled up the Crimea. Just because Russia is not officially communist anymore does not mean they do not have national ambitions for territory. It amazes me that our current President seems to think that making statements about international law would deter an aggressor.
And that this occurs at the same time that the western democracies decrease their military forces strikes me as short-sighted and naive.
It reminds me of how the left vilified then President Bush for declaring that North Korea, Iran and Iraq constituted an axis of evil as if there were no such thing as evil. It’s almost as if we live in a sort of collective denial and that if we’re nice then so will the rest of the world be nice.
And let’s not forget the Jihadi nations like Iran and terror organizations like Hezbollah.
Jesus said there would be wars and rumors of wars in Matthew 24:
As he sat on the Mount of Olives, the disciples came to him privately, saying, “Tell us, when will these things be, and what will be the sign of your coming and of the end of the age?”  And Jesus answered them, “See that no one leads you astray.  For many will come in my name, saying, ‘I am the Christ,’ and they will lead many astray.  And you will hear of wars and rumors of wars. See that you are not alarmed, for this must take place, but the end is not yet.  For nation will rise against nation, and kingdom against kingdom, and there will be famines and earthquakes in various places.  All these are but the beginning of the birth pains.
(Matthew 24:3-8 ESV)
Conflict is something that the world will endure until the end of the age. Until that time we would be wise not to let out guard down and realize it is not a safe world out there.