Henry's preparations for an invasion progressed slowly, and when he finally arrived in Brittany with an army in May 1230, the campaign did not go well. Possibly on the advice of Hubert, the King decided to avoid battle with the French by not invading Normandy and instead marching south into Poitou, where he campaigned ineffectually over the summer, before finally progressing safely onto Gascony. He made a truce with Louis until 1234 and returned to England having achieved nothing; historian Huw Ridgeway describes the expedition as a "costly fiasco".