[Greek Prime Minister Alexis Tsipras, right, speaks with European Commission President Jean-Claude Juncker as Belgian Prime Minister Charles Michel, left, speaks with French President Francois Hollande, center, during a round table meeting at an EU Summit in Brussels on Thursday, Dec. 15, 2016. European Union leaders meet Thursday in Brussels to discuss defense, migration, the conflict in Syria and Britain's plans to leave the bloc. (AP Photo/Geert Vanden Wijngaert)]BRUSSELS (AP) — The European Union will extend its sanctions against Russia for six more months to keep pressure on Moscow to respect the fragile peace agreement in Ukraine, EU officials said Thursday.