Months after seizing Snake Island, Russian forces abandoned the strategic territory in the Black Sea, following repeated Ukrainian attacks. Satellite images show how the tiny island became a key battleground in the conflict. Photo: Maxar/Associated Press. WSJ Explains News moves fast, and there's not always time to untangle the complex forces driving the day's biggest stories. WSJ Explains breaks down big market moves, business and economic trends, and scientific developments to help you stay ahead of the curve. More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #WSJ #Russia #Ukraine