Although a war against France would be costly and might make Henry vulnerable, especially if France supported Yorkist claimants, he still announced his claim to the French throne
Henry spent a year preparing, crossing the Channel in October 1492
By the time the force arrived in France, the campaigning season was almost over so any conflict would be short
Henry was also fortunate that the French King was more interested in invading Italy and so wanted to be rid of English troops
Charles soon offered Henry peace, and on 3 November signed the Treaty of Etaples
Treaty of Etaples:
give no aid to English rebels - particularly Warbeck
pay the arrears of the Treaty of Picquigny
pay most of Henry's expenses in Brittany
Result of war with France was an annual pension for Henry of £5000 per year
Although Henry had been unable to prevent the loss of Breton independence, there had been some success