Many
 people forget a major country involved in World War Two—Spain. Though 
Spain was not a member of the Axis military alliance, it was politically
 and ideologically aligned with the Axis Powers.
Francisco Franco was the fascist dictator of Spain 
just before, during and after WWII. Germany and Italy helped Franco 
overthrow the government of Spain’s Second Republic during the Spanish 
Civil War. France, the USSR and many United States and British citizens 
supported the Republic. The Spanish Civil War ended mere months before 
the beginning of WWII.
During WWII, Franco kept close ties to his fellow 
fascist dictators, Hitler and Mussolini. He traded war supplies, weapons
 and ammunition to the Axis. He also allowed monitoring stations and 
saboteurs from the Axis to enter Spain to thwart the Allied Powers. 
Publicly, Franco applauded the Axis and denounced the Allies in speeches
 and letters. His boldest aid to the Axis, however, was the Blue 
Division—an army of Spanish volunteer (and later conscripted) soldiers 
that were sent to the Eastern Front to fight the Soviet Union.
All of this was done under Spain’s formal claim of 
neutrality. Franco’s aid to the Axis only diminished once the Allied 
Powers were clearly gaining the upper hand.  WWII ended with the Axis 
Powers defeated, Hitler and Mussolini dead, and Francisco Franco left as
 the last remaining major fascist dictator in Europe.
Read more 
here at War History Online.