World interest in the conflict in Spain was high when fighting broke out in 1936, and was perhaps best typified by the French artist Mirņ, who designed a postage stamp with the legend "Aidez l'Espagne!" (Help Spain!) to summon volunteers to fight against Fascism in the name of the Spanish people. The International Brigades were used by the Nationalist army for several battles, including the unsuccessful defence of the supply road between Valencia and Madrid in the Jarama Valley from February to June 1937. When the Republicans launched a counterattack on the "Pingarron" and Santa Maria de La Vega in an attempt to regain positions they had lost in previous weeks, more than 30,000 Nationalists faced sixteen international brigades, drawn from nations around the world.
Attacker: Republicans (XV International Brigade: Battalions "England", "Ireland", and "Wales"/"Abraham Lincoln" Battalion/Lister Republican "Stalinist Brigade")
Defender: Nationalists ("Condor Legio"/Raggruppamento Autonomo XXIII Marzo: Brigata "Penne nere"/Spanish Nationalist "2nd and 3rd Franchist's" Group and local militia)
Turns: 6 Players: 2 OBA: None Night: No
Jarama, Spain 1937-02-23
Squads: A:60.0 D:50.0
AFVs: A:0 D:0
Guns: A:3 OML 3-in. Mortar x 3 D:3 8.8cm FlaK 18 o. 36 x 3