HORLIVKA, Ukraine (AP) — The fuel is local, but the matches are Russian. That in a nutshell is how the insurgency threatening the survival of Ukraine as a unified state is increasingly unfolding.

Over the past 10 days, more than a dozen government offices in eastern Ukraine have been taken over by pro-Russian forces, with most of the seizures following the same pattern. Aggressive gangs, sometimes carrying firearms and wearing military fatigues, storm the buildings. The Ukrainian flag is replaced with a Russian one. Then local men move in to hold them.