What is meant by the tripartite strugglewhy was Kanauj a bone of contention between the three major powers?

The tripartite struggle refers to the intense competition for control over the region of Kanauj in northern India during the early medieval period, primarily involving three major powers: the Gurjara-Pratiharas, the Rashtrakutas, and the Palas. Kanauj was a strategically significant city, as it served as a cultural and political center, making it a coveted prize for these empires seeking to assert dominance in the region. The struggle for Kanauj symbolized broader regional conflicts, with each power aiming to expand its influence and territory, leading to frequent military confrontations. Ultimately, the control of Kanauj was crucial for establishing supremacy over northern India.