Trump Sanctions Russian Oil Giants, Cancels Meeting With Putin

Group 1 - The meeting with President Putin was canceled due to a feeling that it would not lead to a productive outcome, but it is planned for the future [1] - Sanctions against Russia are being elevated at this time, indicating a strategic decision after a prolonged period of waiting [1] - There is a reference to previous military engagements, suggesting a historical context of involvement in multiple conflicts [2]