The British used a tactic call "phony friends" and "phony opposition" in their politics of "adu-domba".Alaupaya pengasas dinasti Kombaung di Burma dari bukannya kerajaan Sukhotai. Kerajaan Sukhotai telahpun wujud sebelum kerajaan Ayuthia. Setelah kejatuhan kerajaan Sukhotai maka wujud pula kerajaan Ayuthia sehingga dikalahkan oleh pengasas dinasti Kombaung dari Burma. Namun penguasaan dinasti kombaung ke atas Ayuthia tidak bertahan lama sehingga dikalahkan oleh Pya Taksin. Pya Taksin tidak mempunyai keturunan sehungga dihukum bunuh oleh pembesarnya sendiri dan digantikan oleh Rama 1 iaitu pengasas dinasti Chakri yang berkuasa sehungga kini.
Alaungpaya was a mountain tribal leader that the British used to end the establishment (just like the American supporting the Afghan mujahiddin to attack Rusia) of the Taungoo Dynasty(remnant of Mon/Khmer civilization and ally to Ayuthayya). Alaungpaya killed hundreds of monks as well as hundreds of imams/muslim village leaders in the establishment of the Konbaung Dynasty in Myanmar.
While the British were shaking hands with Ayutthaya court members, they were promoting the Konbaung to join hands with their Thai-Kadai cousin the sleeping Lanna-Sokhothai Dynasty to join forces and attack the Mon-Khmer Ayutthaya. Since the British are already into Ayutthaya court, they made General Taksin army stay out of Ayutthaya during those attack. Upon the conquering & burning (of Ayutthaya) & for ONLY 6 months of Burmese occupation of Ayutthaya, Taksin then returned from Vietnam and chased the Konbaung out.
The British then create havoc (Machiavellian tactics) and replaced Taksin with Vietnamese blood Chakri to rule Ayutthaya.
Ayutthaya was opened by Mon/Khmer but the British switched power into Vietnamese blood King ruling the Tai-Kadai. Burma was annexed into British imeperialism and the Konbaung was the created mechanism.
Smart & cunning tactic that was the thumb print of "British Diplomacy"