Ukrainian President Volodymyr Zelensky says on Twitter that he has accepted invitations to the G7 and NATO summits taking place later this month in southern Germany and Madrid, respectively. Zelensky wrote he had “gratefully accepted the invitation” of German Chancellor Olaf Scholz, who is hosting G7 leader at Bavaria’s Schloss Elmau on June 26-28, and NATO Secretary General Jens Stoltenberg, who is hosting NATO leaders in the Spanish capital on June 29-30. The Ukrainian head of state did not specify whether he would attend the summits in person, or address leaders via video link, which he has…