The political landscape of the ancient Near East was defined by shifting alliances, mass migrations, and constant struggles for dominance. Caught in this turbulent environment, the five kings of the Jordan plain found themselves subordinate to a powerful northern coalition led by Chedorlaomer, who stood out as the strongest and most prominent ruler among them [רש״י, רד״ק, ביאור שטיינזלץ, גור אריה]. This period of subjugation likely began even before Abram arrived in the land of Canaan. It may have originated as a willing compromise [ספורנו], perhaps acting as a mutual defense pact against the Canaanites and Perizzites who had conquered the surrounding hill country. Alternatively, the kings of the plain might have been immigrants from the land of Shinar who simply maintained loyalty to their original homeland [קונטרס חיבה יתירה]. Regardless of its origins, this subjection was highly practical, requiring the five local kings to pay heavy taxes and deliver regular tributes to their northern overlord [רד״ק, שד״ל].
Eventually, the burden of this arrangement became too much to bear, leading to a fateful uprising. The rebellion itself was straightforward: the kings of the plain simply stopped paying their taxes and refused to send any further tribute [רד״ק, שד״ל, מלבי״ם]. On a deeper level, this uprising reflected a natural human refusal to remain crushed under a harsh reality. However, true physical freedom requires a foundation of moral freedom, a crucial step that these kings, blinded by their own arrogance, completely ignored [רש ר הירש]. From a strategic standpoint, the decision to rebel meant that the kings of the plain were not caught off guard when war eventually broke out. They fully understood that the northern alliance would march against them to forcefully restore their dominance, giving the local rulers ample time to prepare for the coming conflict [העמק דבר].
The exact timeline of this prolonged conflict is a subject of debate among commentators, stemming from an ambiguity in how the historical years are counted. One primary approach suggests that the kings served their overlord for twelve years, and the rebellion sparked immediately during the thirteenth year [אבן עזרא, רד״ק, רבנו בחיי, ר' סעדיה גאון, ביאור יש״ר, מחוקקי יהודה]. A contrasting perspective argues that the rebellion itself dragged on for thirteen full years. According to this calculation, the actual war did not break out until the twenty-sixth year of their political relationship [רש״י, שד״ל, מזרחי, גור אריה, נתינה לגר]. Because the historical record can be read both ways, some scholars conclude that the timeline intentionally accommodates both interpretations, leaving the precise duration of the rebellion an open question [מלבי״ם, רלב״ג].