USS Maine (ACR-1) known for her loss in Havana Harbor on the evening of 15 February 1898. Sent to protect U.S. interests during the Cuban revolt against Spain, she exploded suddenly, without warning, and sank quickly, killing nearly three quarters of her crew. The cause and responsibility for her sinking remained unclear after a board of inquiry investigated. Nevertheless, popular opinion in the U.S., fanned by inflammatory articles printed in the "yellow press" by William Randolph Hearst and Joseph Pulitzer, blamed Spain. The phrase, "Remember the "Maine!" To hell with Spain!", became a rallying cry for action, which came with the Spanish–American War
Cruiser tank tank of 1946 became the "Universal tank" of the United Kingdom, transcending the cruiser and infantry tank roles and becoming one of the first main battle tanks (MBT). Dissatisfaction with experimental medium tank designs of the mid-1930s led to the development of specialised fast cruiser tanks, where armour thickness was sacrificed for speed and infantry tanks, in which speed was sacrificed for heavier armour. Financial constraints had made it impossible to produce a vehicle suitable for close support and for exploitation. The thinking was behind several tank designs which saw action during the Second World War. British armoured operations theory