Foreign ministers from the Group of Seven powerful economies aim to give what Germany called a “powerful sign of unity” as they meet on Friday to discuss the war in Ukraine, fears that the conflict could spill over into Moldova, and food security concerns.

The annual meeting running until Saturday brings together top diplomats from Britain, Canada, Germany, France, Italy, Japan, the United States, and the European Union to a 400-year-old castle estate in the Baltic Sea resort of Weissenhaus.

They will defy Russian attempts to split the world over Ukraine, German Foreign Minister Annalena Baerbock said ahead of the meeting. “Never since the end of the Cold War have we G7 partners been more profoundly challenged. Never before have we stood more united,” she said in a tweet.