REUTERS/Stephane MaheBy Alessandro Parodi and Nerijus AdomaitisFrance's detention of a tanker suspected of operating for Russia's "shadow fleet" is part of a new European strategy to block revenue funding Moscow's war effort in Ukraine, President Emmanuel Macron said on Thursday. French Navy commandos raided the Boracay on Saturday off western France. The vessel was already under EU and British sanctions for suspected participation in Russian oil exports. The tanker raid was part of a wider plan to take tougher actions to limit Russia's oil sales and press for an end to the war in Ukraine, he said. The Kremlin said on Thursday that France's detention of the vessel was "hysteria" that could create problems for global energy transportation routes.