In 1354 - 1355 Edward and his court wavered between optimism that a negotiated settlement was within their grasp - and determination to continue to prosecute the war. The Treaty of Guines looked to have given Edward more than he could have hoped for - Aquitaine, Anjou and Calais in return for peace and the renunciation of his claims. But in the end it was to be war again. The Black Prince started things off with the Great Chevaucee