Ava Kingdom
After Pegu's improbable fall, the Shan Confederation, which ruled the former Ava Kingdom, finally took notice. When Toungoo's armies later attacked its vassal Prome, the Confederation sent in troops and broke the siege. Toungoo retreated but soon gained the allegiance of many Mon lords, and manpower after Hanthawaddy's king Takayutpi died a few months later.