Crimea is Ukrainian
Putin aggressive stance:
1. U.K. http://www.bbc.com/news/uk-31049952
2. Sweden http://edition.cnn.com/2014/12/14/world/europe/sweden-russia-planes-near-collision/
3. U.S. http://edition.cnn.com/2014/11/13/world/europe/russia-bombers-plan/
Defense Minister Sergey Shoigu said Wednesday that “we have to maintain (Russia’s) military presence in the western Atlantic and eastern Pacific, as well as the Caribbean and the Gulf of Mexico” — including sending bombers “as part of the drills.”
Crimea was a Soviet-era gift to Ukraine by Kruschev, and at the time a meaningless gesture. Crimea is solidly Russian and has been since Catherine the Great.