@Baldimo,
Yes, and what happened to Russia when they foolishly annexed the Crimea? They tried to make it look like it was the will of the Crimean population, but it didn't work. When Russia moved troops into the Crimea, (part of Ukraine, which is not a NATO country but a breakaway nation from Russia), Russia tried to bluff it through but Obama got together with the EU and slapped economic sanctions on Russia that slowed the Russian economy considerably. Then Obama got together with Saudi Arabia and got the Saudis to continue oil production, which combined with American oil production drove the price of oil way down.
Russia's major product is oil. Between Obama's work with the Saudis and his agreement with the EU, the Russian economy took a giant fall downward, and Russia remains in a Depression to this day. This is a chart of the Russian ruble vs the US Dollar-the ruble caved under the pressure Obama brought against Russia, which Putin completely miscalculated.
And if that wasn't enough, Obama got together with Saudi Arabia for the Saudi's to keep pumping oil, whcih drove down the price of Russia's only product, oil. This put the Russian economy into a Depression from which they haven't recovered. Putin gained a small parcel of land that it was allowed to lease anyway, and lost her economy because Obama caved them in. Note the GDP of the Russian economy before and after 2014, when Russia invaded Ukraine.
Russia is economically in a severly weakened condition because of what Obama did to them. And there was more to come if Russia tried more, and they knew it. Trump, on the other hand, is already talking about taking off sanctions against Russia to please his buddy boy Putin.