were thus retaken from the Spanish yet again, although an attempt on s'Hertogenbosch failed during the winter months. At Ostend in January 1602 after being reinforced, Vere faced a huge Spanish frontal assault organised by the Archduke Albert and in bitter fighting this was repelled with heavy losses. Vere left the city soon after and joined Maurice in the field, while Albert, who drew much criticism from army commanders for his tactics, was replaced by the talented Ambrogio Spinola. The siege dragged on for another two years as the Spanish attempted to take Ostend's strongpoints in a costly war of attrition. Around the same time Maurice continued his campaign, Grave was retaken but Vere was severely wounded during the siege. An attempt by the Dutch and English to relieve Ostend took place in mid-1604 but the inland of port of Sluis was besieged and captured instead. Soon after the Ostend garrison finally surrendered, after a siege of nearly four years and costing thousands of lives – for the Spanish, it was a pyrrhic victory. France Normandy added a new front in the war and the threat of another invasion attempt across the channel. In 1590, the Spanish landed a considerable force in Brittany to assist the French Catholic League, expelling the English and Huguenot forces from much of the area. Henry IV's conversion to Catholicism in 1593 won him widespread French support for his claim to the throne, particularly in Paris (where he was crowned the following year), a city that he had unsuccessfully besieged in 1590. In 1594 Anglo-French forces were able to end Spanish hopes of using the large port of Brest as a launching point for an invasion of England by capturing Fort Crozon. The French Wars of Religion turned increasingly against the hardliners of the French Catholic League. With the signing of the Triple Alliance in 1596 between France, England, and the Dutch, Elizabeth sent a further 2,000 troops to France after the Spanish took Calais. In September 1597 Anglo-French forces under Henry retook Amiens, just six months after the Spanish took the city, bringing to a halt a string of Spanish victories. In fact, the first tentative talks on peace between the French and Spanish crowns had already begun before the battle and the League hardliners were already losing popular support throughout France to a resurgent Henry after his conversion to Roman Catholicism which was