The Battle of Lanfeng(兰封会战) was part of the larger campaign for Northern and Eastern Honan (February 7 – June 10, 1938) and was occurring at the same time as the Battle of Xuzhou (Late December – Early June 1938). It involved a counterattack at Lanfeng by elements of the 1st War Area on the 14th Division, the vanguard of the Japanese First Army of its North China Area Army numbering 20,000 men and tanks. It was the first action of the Chinese 200th Division, the first mechanized division in the Chinese Army.