The globalists are propping up an illegitimate, Neonazi regime in Ukraine and hope to drag Ukraine into the debt enslaved EU. The vast majority of the Crimean populace is ethnically Russian and potentially under threat from Svoboda, the party the west helped to install. The globalists want to militarily surround Russia and park NATO troops and nukes right at Russia's doorstep, much like they wanted to do in Georgia.
The situation is totally different than Vietnam. The Crimeans in general willfully want to be annexed by Russia. Historically the Crimea was part of Russia for centuries until it was "gifted" to Ukraine by Soviet president and Ukrainian Nikita Krushchev in 1954.