Turkey fought against the E.U in the war of xx00 and was humiliated as a result. Many North African and Arab countries felt as if it was their fault that Gauche was formed and some time after the war, the expansionist doctrines of Paris were issued forcing the founding members of the Arabian Union together "for their own safety". some time after Arabia was formed, they gave independence to the Saharan Union and parts of Persia as they saw no value in these regions.
Arabia became a de facto enemy of Gauche and sought to overpower Gauche. their first major move was to advance into the Caucasus, which was administered by Gauche at the time, annexing some land. Arabia cooperates with Russia due to a common enemy. Some time around xx21,Arabia launched an advancement into Iberia. Although initially successful, they were later pushed back, however Gauche was forced to divide Spain into multiple puppet states after the attack. At one point, Greece invades Anatolia, annexing certain lands. In xx67- part of the episode "The Ally", Arabia advances into Greece; this sudden attack causes Gauche troops to get directly involved in a military operation since xx21. As the Gauche story continues, Arabia advances further into the Balkans, annexing Bulgaria, Macedonia, Serbia and Romania.
Arabia tried again to advance into Iberia, yet this results in a stalemate. After a joint invasion of Italy with Romania and Iberian rebels attempting to gain freedom from Gauche, Arabia pushes through the Iberian peninsula and southern France coming closer and closer to Paris. After Poland sacrificed themselves, Paris fell and Arabia and Russia won the war. However, soon after, Arabia collapsed due to internal pressure, and the fact that the main purpose of their country- defeating Gauche- was gone.