German Foreign Minister Heiko Maas says the supply of German-made weapons to Ukraine could affect negotiations with Russia on the need to hold meetings in the Normandy Four format to settle the Donbas conflict. "As for the arms supplies, I said when, together with Mr. Jean-Yves Le Drian, Minister of European and Foreign Affairs of France, we called Mr Sergei Lavrov, Foreign Minister of Russia, to set up the meeting in the Normandy format, where Germany and France play the role of mediators, during this phone call, if I were to say that we decided to supply weapons to one of the parties to the conflict, I think that phone call would have been much shorter than it actually was," Maas emphasized.