Given the question: Information: - The infantry tank was a concept developed by the British and French in the years leading up to World War II. Infantry tanks were designed to support infantry-soldiers in an attack. To achieve this, the vehicles were generally heavily armoured to allow them to operate in close concert with infantry even under heavy fire. The extra armour came at the expense of speed, which was not an issue when supporting relatively slow-moving infantry. - The Bishop was the nickname of a British self - propelled artillery vehicle based on the Valentine tank , armed with the 25 pounder gun - howitzer , which could fire an 87.6 mm ( 3.45 in ) 11.5 kg ( 25 lb ) HE shell or an armour - piercing shell . A result of a rushed attempt to create a self - propelled gun , the vehicle had numerous problems , was produced in limited numbers and was soon replaced by better designs . - The Tank, Infantry, Mk III, Valentine was an infantry tank produced in the United Kingdom during the Second World War. More than 8,000 of the type were produced in eleven marks, plus various specialised variants, accounting for approximately a quarter of wartime British tank production. The many variants included riveted and welded construction, petrol and diesel engines and a progressive increase in armament. It was supplied in large numbers to the USSR and built under licence in Canada. Developed by Vickers, it proved to be both strong and reliable. Given the paragraphs above, decide what entity has the relation 'conflict' with 'world war ii'.
The answer is:
bishop