Russia’s Central Bank says it has filed a lawsuit against Belgian financial institution Euroclear. That's the Brussels-based clearing house that holds most of Moscow’s frozen assets in Europe.

Officials are accusing Russia of smaller-scale assaults. President Vladimir V. Putin sought to turn the tables, saying that if Europe were to start a war, Russia is ready.

Imports dipped after the invasion, and Europe placed sanctions on a number of executives at Russian fertiliser companies. But it soon made clear that the companies themselves, and the commodities they sell,