What happened March 1938AD

On 7 March, Nationalists launched the Aragon Offensive, and by 14 April they had pushed through to the Mediterranean, cutting the Republican-held portion of Spain in two. The Republican government attempted to sue for peace in May, but Franco demanded unconditional surrender, and the war raged on. In July, the Nationalist army pressed southward from Teruel and south along the coast toward the capital of the Republic at Valencia, but was halted in heavy fighting along the XYZ Line, a system of fortifications defending Valencia.

On 12 March 1938, Hitler announced the unification of Austria with Nazi Germany in the Anschluss.

In March 1938, Germany annexed Austria.

With many victories achieved, Japanese field generals escalated the war in Jiangsu in an attempt to wipe out Chinese resistance, but were defeated at the Battle of Taierzhuang (March–April 1938).

On 28–29 March 1938, Hitler held a series of secret meetings in Berlin with Konrad Henlein of the Sudeten German Party, the largest of the ethnic German parties of the Sudetenland. The men agreed that Henlein would demand increased autonomy for Sudeten Germans from the Czechoslovakian government, thus providing a pretext for German military action against Czechoslovakia.