Hkam Hkai Hpa of Hsenwi

Sao Long Hkam Hkai Hpa (d. 1412) was sawbwa of Hsenwi (in present-day northeastern Myanmar) from 1407/08 to 1412. A loyal vassal of Ming China, the sawbwa led a Chinese-supported expedition against Ava in 1412 during the Ava–Hanthawaddy War (1408–1418). He was killed in action during the campaign.

Early life According to the Hsenwi Yazawin chronicle, Sao Long Hkam Hkai Hpa was born Hkun Nkam Hung into the ruling family of Hsenwi. At the time, Hsenwi was a Shan-speaking tributary state under Ming China. Nkam Hung's father, Sao Hkun Hkam Pöt, became the sawbwa (chief) of the Shan state in 1405/06. When his father died two years later in 1407/08, Nkam Hung, as the elder son, (Hkun Hkam Pöt had a younger son, Hkun Hkam Wat.) Meanwhile, China, which considered the Shan states its tributaries, was focused on a major rebellion in Đại Việt (present-day northern Vietnam), and had done little to stop Ava's expansion. Though the Ming court warned Ava in 1406 to cease its "aggression" in the Shan states, in reality, it actually withdrew troops from Yunnan to support the Đại Việt campaign the same year.

According to the Hsenwi Yazawin chronicle, relations with Ava deteriorated to open hostilities by 1409 when Ava made two incursions into Hsenwi territory. (The hostilities may have started as early as 1408.) bulleted list The Hsenwi Yazawin says Ava "invaded" Hsenwi twice in 771 ME (1409/10)—first by the lord of Pagan, and another by the lord of Pagan and "King" [sic] Minye Kyawswa. Ming records state that the sawbwa dispatched a delegation to Beijing to request military assistance. The mission was received on 5 September 1409, and the Ming court was receptive. Encouraged by recent success in Đại Việt, the Yongle Emperor sent a eunuch delegate to Hsenwi, promising a punitive expedition against Ava.

Invasion of Ava and death Hkam Hkai Hpa ultimately led the punitive expedition although planning required two more years. The Ming court took steps to build a coalition: it recognized King Razadarit of Hanthawaddy as a Chinese tributary ruler—Razadarit had been fighting Ava since 1408, and by August 1411, it had secured an alliance with the powerful Shan state of Mong Mao (Maw). For his part, Hkam Hkai Hpa reinforced his capital's defenses, having moved the seat of government from Mong Keng to Wing Hkam Kai, north of Se-U (Se-Au), in 1408/09.

Circa April 1412, Hkam Hkai Hpa's expeditionary force invaded Hsipaw, an Ava vassal state situated approximately 120 kilometers southwest of Hsenwi. They met minimal resistance. Hsipaw's sawbwa, Tho Kyaung Bwa, immediately fled to Ava. Hsenwi forces pressed on through the Shan Hills towards Ava (Inwa), located about 220 kilometers southwest of Hsipaw. However, the Hsenwi army encountered the northern Ava army commanded by Crown Prince Minye Kyawswa near Wetwin, about 80 km from Ava. The sawbwa was killed in the battle, and most of the surviving Hsenwi forces retreated. The battle resulted in the deaths of about 300 Hsenwi troops; an additional 800 troops, 200 horses, and six elephants were captured. The siege lasted another month until November 1412 when Razadarit opened a new southern front.

Hkam Hkai Hpa was succeeded by his middle son, Hkam Yawt. The new sawbwa continued to partake in the subsequent Chinese attacks into northern Ava. He signed a peace treaty with Ava in 1418/19 (or 1416).