The cruiser tank was a British tank concept of the interwar period for tanks designed as modernised armoured and mechanised cavalry, as distinguished from infantry tanks. Cruiser tanks were developed after medium tank designs of the 1930s failed to satisfy the Royal Armoured Corps. The cruiser tank concept was conceived by Giffard Le Quesne Martel, who preferred many small light tanks to swarm an opponent, instead of a few expensive and unsatisfactory medium tanks. "Light" cruiser tanks carried less armour and were correspondingly faster, whilst "heavy" cruiser tanks had more armour and were slightly slower.
Crusader Mark I with auxiliary turret
A damaged Cruiser Mk I Close Support abandoned in Calais, 1940.
Cruiser Tank Mark I (A9)
The Cruiser Mark III (A13) with large wheels typical of the Christie suspension
Historically, cavalry are soldiers or warriors who fight mounted on horseback. Until the 20th century cavalry were the most mobile of the combat arms, operating as light cavalry in the roles of reconnaissance, screening, and skirmishing in many armies, or as heavy cavalry for decisive shock attacks in other armies. An individual soldier in the cavalry is known by a number of designations depending on era and tactics, such as a cavalryman, horseman, trooper, cataphract, knight, drabant, hussar, uhlan, mamluk, cuirassier, lancer, dragoon, or horse archer. The designation of cavalry was not usually given to any military forces that used other animals for mounts, such as camels or elephants. Infantry who moved on horseback, but dismounted to fight on foot, were known in the early 17th to the early 18th century as dragoons, a class of mounted infantry which in most armies later evolved into standard cavalry while retaining their historic designation.
French 4th Hussars at the Battle of Friedland, 1807
Assyrian cavalry
Parthian horseman, now on display at the Palazzo Madama, Turin
Warrior's departure; an Athenian amphora dated 550–540 BC