Around a dozen Ukrainian servicemen walked unarmed out of a naval headquarters in the Crimean port of Sevastopol today.
Three Russian flags were flying at one of the entrances, suggesting that at least some of the base was under the control of pro-Russian forces.
Several unarmed members of so-called "self-defence" units, made up of volunteers who have supported Russia's annexation of Crimea, were also seen in the area.
An unusually frank Nato Secretary General issued an unequivocal warning on the course of events should Russia attack Latvia or Estonia.
The West responds with sanctions and closer political ties with Ukraine as Russia's President seals the annexing of Crimea to much fanfare.
Supporters of the controversial fracking industry believe shale gas could be America's most potent weapon in the stand-off with Russia.