How did Abu Bakr unite Arabia and its surrounding territories?

Abu Bakr, the first caliph after Muhammad's death, united Arabia and its surrounding territories through a series of military campaigns known as the Ridda Wars, which quelled tribal rebellions and consolidated Islamic rule. He emphasized the importance of the ummah (Muslim community) and used a combination of diplomacy and force to bring rebellious tribes back into the fold of Islam. His leadership and strategic alliances helped to expand the Islamic state beyond Arabia, laying the groundwork for further conquests under subsequent caliphs. This unification was pivotal in preserving the nascent Muslim identity and expanding the influence of Islam.