Islamic fundamentalism is a newcomer to Chechnya.

Eastern Europe is still tattooed by the Soviet Union. Breakaway regions in Georgia and Moldova—Abkhazia, South Ossetia and Transnistria respectively—are autonomous territories in everything but name.

Today’s suicide bombing in southern Russia adds to a growing list of recent attacks.

An explosion in China’s restive Xinjiang province has once again raised fears of a repeat of last July’s violent riots.