Throughout its history, the "tercio's" composition and battlefield formations and tactics evolved to meet new challenges. "Tercio" formations with well-trained troops and good cavalry support continued to win major battles in the 17th century such as Wimpfen (1622), Fleurus (1622), Breda (1624), Nördlingen (1634), Thionville (1639), Honnecourt (1641) and Valenciennes (1656). It was not until Rocroi (1643) that the Spanish "tercio's" reputation of near invincibility in open battle was shattered. Still, the Rocroi defeat was precipitated by the collapse of the supporting cavalry rather than the failure of the "tercio's" infantry. "Tercios" continued to win battles after Rocroi, such as Tuttlingen the same year or Valenciennes (1656), but their battlefield style continued to evolve. In this period steady improvements in firearms and field artillery were giving the shallower linear style an increasing advantage. By the late 17th century the "tercios" had adopted so much of the linear style that their battlefield formations and tactics often had little resemblance to the classic "tercio" formations and tactics of the previous century. In 1704, the regular Spanish "tercios" were transformed into regiments and the pikeman as an infantry type was dropped. Those of the reserves and the militia would later be transformed into similar organisations.