Hanthawaddy forces, aided by the French East India Company-supplied firearms and Dutch and Portuguese mercenaries, have reached the gates of Ava by early 1752.

The heir-apparent of Hanthawaddy, Upayaza, summons all administrative officers in Upper Burma to submit.

Some chose to cooperate, but others, like Aung Zeya, choose to resist.

Aung Zeya persuades forty-six villages in the Mu Valley to join him in resistance.

On February 29,1752 (the Full moon of Tabaung 1113 ME), as the Hanthawaddy forces are about to breach the outer walls of Ava, Aung Zeya proclaims himself king with the royal style of Alaungpaya ("One Who Is the Future Buddha", Maitreya), and founds the Konbaung Dynasty.

His full royal style is Thiri Pawara Wizaya Nanda Zahta Maha Dhamma Yazadiyaza Alaung Mintayagy.

After Ava fell on March 23, 1752, Alaungpaya's own father, Nyo San, urges him to submit.

He points out that although Alaungpaya has scores of enthusiastic men, they have only a few muskets, and that their little stockade does not stand a chance against a well-equipped Hanthawaddy army that has just sacked a heavily fortified Ava.

Alaungpaya, undeterred, prepares the defenses by stockading his village, now renamed Shwebo, and building a moat around it.

He had the jungle outside the stockade cleared, the ponds destroyed and the wells filled.

Konbaung is only one among many other resistance forces that had independently sprung up across a panicked Upper Burma.

Fortunately for the resistance forces, the Hanthawaddy command had mistakenly equated their capture of Ava with the victory over Upper Burma, and had withdrawn two-thirds of the invasion force back to Bago, leaving just a third (less than ten thousand men) for what they consider a mop-up operation.

At first, the strategy seems to work. Hanthawaddy forces established outposts as far north as present day northern Sagaing Region and ...

...found allies in the Gwe Shan people of Madaya in present-day northern Mandalay Region.

Ahad laungpaya's forces had wiped out the first two Hanthawaddy detachments sent to secure his allegiance.

They next survived the month-long siege by the Hanthawaddy army of several thousand led by General Talaban himself and repulsed the invaders in a rout.

The news spread, and Alaungpaya was soon mustering a proper army from across the Mu Valley and beyond, using his family connections and appointing his fellow gentry leaders as his key lieutenants.

Success drew fresh recruits everyday from many regions across Upper Burma.

Most other resistance forces as well as officers from the disbanded Palace Guards had joined him with such arms as they retained.

Alaungpaya has emerged by October 1752 as the primary challenger to Hanthawaddy and driven out all Hanthawaddy outposts north of Ava as well as their allies, the Gwe Shan.

Bago, despite repeated setbacks, still does not send in reinforcements even as Alaungpaya consolidates his gains throughout Upper Burma.

Konbaung forces retake Ava on January 3, 1754.

Alaungpaya now receives homage from the nearer Shan States ...

...as far north as Momgmit.

The contest for supremacy in Burma has increasingly turned into an ethnic conflict between the Bamar north and the Mon south.

The Hanthawaddy leadership escalates persecution against southern Bamars.

They also execute the captive king of Taungoo in October 1754.

Alaungpaya exploits the situation, encouraging remaining Bamar troops to come over to him; many do.

Alaungpaya, his forces welled by levies from throughout Upper Burma, including Shan and Kachin contingents, launches a massive invasion of Lower Burma in January 1755, rapidly attacking and advancing.

Alaungpaya's armies have conquered the entire Irrawaddy Delta by May and captured Dagon, which he renames Yangon (most commonly translated as "End of Strife"), and founds a larger city by adding such settlements as  Ahlon, Pabedan, Kyauktada, and Botataung.

Alaungpaya's advance comes to a sudden halt, however, at the French-defended main port city of Thanlyin, which repels several Konbaung charges.

Thanlyin in the 1740s had been made the base of the French East India Company for their help in the Mon's reestablishment of Hanthawaddy Kingdom.