In the late 1930s, tank design was considerably more advanced than it had been during World War I, and advances continued throughout the war with increases in speed, armour and firepower.
Pada akhir 1930-an, desain tank lebih maju dibandingkan saat Perang Dunia I, dan kemajuan terjadi sepanjang perang melalui peningkatan kecepatan, pertahanan, dan daya tembak.