Paik served as a naval squadron commander in the battle of Gu-Htut (1390–1391) in the First Ava–Hanthawaddy War.[2][3] He was a member of the four Hanthawaddy delegation that met with King Swa Saw Ke of Ava and successfully negotiated a peace treaty to end the war.[4][5]
He again served as a naval commander of a rearguard flotilla in Hanthawaddy's invasion of Ava in 1401.[6] Even when the tide of war turned against Hanthawaddy in 1402, he remained part of the faction led by Minister-General Zeik-Bye. Their faction, which also included Baw Kyaw, advocated for the continued siege of Prome (Pyay) while co-chief ministers Byat Za and Dein Mani-Yut favored withdrawing from the Prome front altogether. The king agreed with Zeik-Bye, and posted Zeik-Bye, Baw Kyaw and Bya Paik to defend the Nawin fort, which guarded the northerly route to Prome.[7][8]
It turned out that they were severely outnumbered by the Ava forces led by King Minkhaung I himself. On the morning of 26 December 1402,[note 1] the fort fell. Paik and Baw Kyaw both fell in action while Zeik-Bye was captured.[9][10][11]
Notes
^(Yazawin Thit Vol. 1 2012: 220): Tuesday, 3rd waxing of Tabodwe 764 ME = 26 December 1402