On 2 August 1521 Wolsey arrived at Calais to preside over a conference the ostensible purpose of which was to put an end to fighting that had broken out earlier in the year, fighting which had increasingly involved French and imperial forces. When, nearly four months later, the conference broke up, the fighting still continued. Clearly Wolsey had been unsuccessful in bringing about peace, but he did not return to England empty-handed. On 24 November a treaty had been signed committing England to a declaration of war against France, at least by March 1523. This treaty, and especially the fact that its terms had to all intents and purposes been settled at Wolsey's meeting with the emperor at Bruges less than a fortnight after his arrival at Calais, has led many historians to suspect that Wolsey had never been very serious about his role as peacemaker. Not, however, all. In his biography of Henry VIII, J. J. Scarisbrick has argued most powerfully that at Calais Wolsey worked very hard to reconcile Francis I and the emperor, and, indeed he sees his activities there as crucial evidence that ‘Wolsey's policy was a peace policy and for about fifteen years he struggled to make it work’. The main purpose of this article will be to argue that, at least as far as the events of 1521 are concerned, this thesis cannot be sustained. Instead, it will be shown that Wolsey's main aim in 1521 was to bring about the alliance with the emperor.