The two ships would not be ready for action until July or August.[27] Admiral Günther Lütjens, Flottenchef (Fleet Chief) of the Kriegsmarine, chosen to lead the operation, wished to delay the operation at least until either Scharnhorst or Tirpitz became available,[28] but the OKM decided to proceed with the operation, codenamed Operation Rheinübung, with a force consisting of only Bismarck and the heavy cruiser Prinz Eugen.[26] At a final meeting with Raeder in Paris on 26 April, Lütjens was encouraged by his commander-in-chief to proceed and he eventually decided that an operation should begin as soon as possible to prevent the enemy gaining any respite.[29]