Having explained the Ukraine "situation" in one map, it appears the inter-connectedness of Ukraine and Russia is becoming any increasingly problematic part of the current crisis. As Reuters reports, absent Russian gas, Ukraine's natural gas stocks can meet just 4 months of demand. The modest silver-lining is that the stocks are generally in the west of the country (away from potential Russian intervention) but it bears noting that Ukraine meets around half its gas demand through Russian imports (and Russia has cut supplies in the past). The situatio is not just energy though as Bloomberg notes, that Ukraine relies on Russia for about 30 percent of its global trade activity, compared with Russia’s 6 percent dependency on Ukraine.
Sadly, everything you need to know about the crisis in Ukraine in one worrisome map which summarizes all the relevant "red lines."