[4] Aided by Portuguese mercenaries and their firearms, his powerful navy and army pushed the boundaries of the kingdom deep into Bengal, where coins bearing his name and styling him sultan were struck, and even interfered in the affairs of mainland Burma.

He survived the invasions and later provided military aid to Ava, hoping to stop Toungoo's advance into Upper Burma.

He is also credited with creating a naval fleet that dominated the Bay of Bengal, which in the following century would enable Arakan to control the entire 1600-km coastline from the Sundarbans to the Gulf of Martaban.

The future king was born Min Pa (မင်းပါ) to Crown Prince Raza of Mrauk-U and Princess Saw Nandi in 1493.

Though he lost out the throne to Minkhaung, Min Pa however managed to get appointed as the new governor of Thandwe (Sandoway), the second most important city in the kingdom.

[9] Min Bin ascended to the throne on Saturday, 27 May 1531, with the royal styles of Thiri Thuriya Sanda Maha Dhamma Yaza and Zabuk Shah.

(In the following decade, the capital Mrauk-U would get an elaborate defensive works consisted of massive stone walls and a deep moat filled with tidal waters.

[11] According to chronicles, one notable absence at the coronation ceremony was Chittagong which had paid tribute to strong Arakanese kings Ba Saw Phyu (r. 1459–1482) and Dawlya (r. 1482–1492).

Min Bin was determined to restore what he called his forebears' rightful realm, which according to him, included all of Bengal, not just Chittagong.

On 7 October 1532 (9th waxing of Tazaungmon 894 ME), he led a combined invasion force of 12,000 (three armies of 11,000 men in a three-pronged attack, and a flotilla of war boats carrying 1,000 troops), and invaded Bengal.

[13] According to historians, his control of Bengal beyond Chittagong, where coins bearing his name and styling him sultan were struck, was nominal.

[5][10] Like Bengal's sultans before him, he had to contend with raids by "Tripuri tribes" from the north throughout his reign, not just on Dhaka but also on Chittagong and Ramu.

They had seized trading ports of Goa since 1510 and Malacca since 1511, and controlled important sea lanes in South and Southeast Asia.

In the following years, Min Bin enlisted many Portuguese mercenaries and their firearms, and with their help, he established well-armed naval and army forces.

Not only did he control the entire Arakan littoral to Chittagong but he also had built up a powerful navy and an army that included many Portuguese mercenaries.

When King Minkhaung of Prome, the only holdout in Lower Burma and a vassal of the Confederation of Shan States, asked for an alliance by presenting his sister, the former queen of Hanthawaddy, Min Bin readily agreed.

[27] The next day, Toungoo forces began their final push, driving out the Mrauk-U army from Launggyet and surrounding the heavily fortified Arakanese capital.

They even breached the eastern outworks of Mrauk-U but were flooded out when Min Bin opened the sluices of the city's reservoirs.

Toungoo forces began their retreat three days later, and evacuated Thandwe on 26 March 1547 (5th waxing of Late Tagu 908 ME).