Medium tanks are reasonably agile multi-purpose tanks which are able to take on many roles such as scouts, support, or even front-line tanks.
USSR
IV

V

V

VI

VI

VI

VI

VII

VII

VII

VII

VIII

VIII

IX

IX

X

X

X

Germany
III

III

IV

IV

IV

V

V

V

V

V

V

VI

VI

VI

VI

VII

VII

VII

VIII

VIII

VIII

IX

IX

X

X

USA
II

III

IV

V

V

V

V

V

VI

VI

VI

VII

VII

VIII

VIII

VIII

VIII

VIII

IX

IX

X

UK
I

II

III

IV

V

VI

VI

VII

VIII

IX

X

France