And from an Axis Spain to an Allied Spain...
"Invasion of Republican Spain by an annoyed Hitler, with help from his Italian buddies (and a few Vichy-types)
PoD something like *hand-wavey* Franco dies, splintering the Nationalists, more support from Britain and France with a few regular battalions disguised as International Brigades. They manage to defeat the Nationalists in the majority of the country by 1937. The Condor legion, refusing to evacuate until the last minute, very nearly being caught, manage to bomb the town of Guernica as one last act of revenge.
The start of the war goes pretty similar to OTL, mostly minor differences in time scales, casualties etc. A slightly more bloody Dunkirk-esque event for Britain. Means they are more willing to reinforce the Spanish armies in August 1940 when Hitler crosses the Pyrenees.
...or something. *Shrug*"
thats interesting: i'd like to see how the war will continue with that front.