Dude. Putin himself admitted it. Seriously, do you follow the news?
Crimea was already part of Russia on the date you claim Russia “invaded” Crimea. So it is YOU who apparently doesn’t follow to news & hasn’t a CLUE! Russia was defending Crimean forces on it’s own territory!
http://en.m.wikipedia.org/wiki/Crimean_status_referendum,_2014
All is fair in love and war.....so yo admit Putin pulled a fast one! LOL.
Heck he had their communications shut down long before his troops "walked into Crimea"....it was a brilliant move even our military admitted and were amazed at! The advantage is now we know Putin's capability to some extent....using and revealing such worked, but it gave our military opportunity to "see" Putin's military cards...at least those which he exposed.
Because of this I doubt Putin will make another move "like" it any time soon. Although he certainly put people on edge expecting it.....also another tactic he played to the hilt.