Putting his first boot forward: Russian troops move

President Vladimir Putin has declared the independence of the two Ukrainian provinces of Donbas—and sent in "peacekeepers". We ask what is next. The African Union was founded two decades ago this year; its early integration and diplomatic successes have since sharply faded. And our deep, interactive dive into Spotify reveals the slipping global dominance of English-language lyrics.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer