The issue (Rhineland and Saar) was finally resolved when Lloyd George and Woodrow Wilson guaranteed immediate military assistance if Germany attacked without provocation. It was also decided that the Allies would occupy the territory for fifteen years, and that Germany could never rearm the area. Lloyd George insisted on a clause allowing for the early withdrawal of Allied troops if the Germans fulfilled the treaty; Clemenceau inserted Article 429 into the treaty that permitted the Allied occupation beyond the fifteen years if adequate guarantees for Allied security against unprovoked aggression were not met. This was in case the U.S. Senate refused to ratify the treaty of guarantee, thereby making null and void the British guarantee as well as that was dependent on the Americans being part of it. This is, in fact, what did occur. Article 429 ensured that a refusal of the U.S. Senate to ratify the treaties of guarantee would not weaken them.