The mysterious explosions that rocked a thin strip of land in the small ex-Soviet nation of Moldova this week are fueling concerns that the war in Ukraine could spill over its borders and into Europe.

Tucked between Moldova and Ukraine lies Transnistria, a territory with its own flag, army, and currency, yet unrecognised by any United Nations member state. It’s a place where Soviet symbols still ...

Transnistria declared independence in 1992 but is not recognized internationally. The request by the territory’s legislature could fuel regional tensions as the war in Ukraine rages. By Andrew Higgins ...