 Mingyi Swa had stayed behind at the capital Pegu (Bago) with an army to guard the rear.The Siamese army led by Crown Prince Naresuan, instead of marching to Ava to join Nanda's armies, hovered around Pegu, and openly disobeyed Swa's orders to march to Ava.Naresuan withdrew to Martaban (Mottama), and formally declared Ayutthaya's independence from Pegu on .