Members of a pro-Russian self defence unit took an oath to Crimea government in Simferopol today.
The oath came on the same day Russian forces took over a military hospital and a missile base in Ukraine's Crimea peninsula.
David Cameron said in a speech to the House of Commons this afternoon that plans to hold a referendum in Crimea on Sunday to formalise Russia's control over the province "will be illegal, illegitimate and will not be recognised by the international community."
Eastern Ukraine's Babuchkas, older women who have worked hard to raise families, are said to be the real power in these parts of the world.
Ukranian military commander told ITV News the Russian men "have come to protect us. So why are their guns pointing towards our base?"
Fear is shaping events in Crimea, the multi-ethnic peninsula that finds itself at the heart of a tussle between great powers.