Ming–Kotte War vs Ming conquest of Đại Ngu

Zheng He displayed doctrinal flexibility by immediately shifting from a static situation to an offensive, whereas Alakeshvara had no doctrinal alternative once his ambush plan unraveled, leaving the capital fatally exposed.

Hồ's defense relied on a static river line doctrine; the Ming demonstrated asymmetric flexibility by combining siege, river crossing, and land operations.

Annihilation Battle — Zheng He aimed to completely destroy the enemy's political-military existence by beheading the leadership rather than attritting forces; capturing the capital was the decisive blow.

War of Annihilation — The Ming strategy was based on completely annihilating the Hồ army, capturing the capital, and destroying the dynasty; it aimed not for limited punishment but total annexation.

Zheng He correctly identified the enemy leadership and political center as the center of gravity, executing a classic 'strike at the neck' strategy. Kotte misidentified its center by dispersing forces to the coast.

Although Hồ Quý Ly focused his center of gravity on Đa Bang fortress, the Ming's agile forces bypassed it and directly headed for the capital; the Ming correctly aimed at destroying the Hồ army's main body.

Alakeshvara employed deception by luring Zheng He inland, but this backfired when the Ming commander counterattacked; Zheng He's true stratagem was striking when the enemy thought him weak.

The Ming used Trần Thiêm Bình as a legitimacy tool and diplomatic diversion; Hồ achieved tactical surprise by ambushing the Ming convoy on the border, but lost strategic surprise.

The Ming forces' gunpowder weapons and disciplined tactical formations created a devastating shock effect on Kotte's traditional warriors; the rapid fall of the capital accelerated psychological collapse and broke enemy resolve.

The Ming siege ammunition and 'large shield' tactic limited the shock effect of Hồ's hand cannons; conversely, Ming cannons collapsed the defense by pounding the Đa Bang walls.

Sri Lanka's tropical climate and dense vegetation posed physical challenges for the Ming troops moving inland, but the Kotte army did not use this terrain effectively for ambush; instead, Zheng He turned the terrain into an opportunity for a surprise march.

The Ming navy and army conducted operations along the Red River during the rainy season; the stakes and ditches planted by Hồ for river defense were overcome by Ming siege engineering.

Zheng He, through previous voyages, had analyzed Kotte's internal dynamics and Alakeshvara's weaknesses; Alakeshvara, however, misjudged the Ming's true military capacity and resolve, failing to foresee a 2,000-strong force capturing his capital.

The Ming court learned of vulnerabilities in the Hồ court through Vietnamese envoys and fleeing Trần loyalists; in contrast, Hồ was unaware of the full Ming expedition preparations.

When ambushed, Zheng He refused to remain static and instead launched an immediate counterstroke, breaking the enemy's interior lines initiative. His rapid strategic agility captured the capital before the Kotte army could react—a Napoleonic maneuver.

The Ming, through simultaneous advances from Guangxi and Yunnan, outflanked Hồ forces by synchronized maneuvers on exterior lines, rendering interior defense ineffective.

The Kotte army suffered a severe morale collapse after losing their capital, while the Ming soldiers, emboldened by Zheng He's bold decision and confidence from prior victories, maintained high fighting spirit, which sustained their six-day break-out action.

The discipline of Ming soldiers and Yongle's personal endorsement provided morale superiority; in the Hồ army, forcibly conscripted poor peasants and the disloyalty of Trần sympathizers led to moral collapse.

Before the battle, the Ming Dynasty undermined Alakeshvara's legitimacy by winning local dissidents like Parakramabahu VI to its side, thus splitting Kotte's internal front and gaining psychological and political preponderance.

The Ming applied diplomatic pressure by presenting Trần Thiêm Bình as the legitimate ruler; however, the ambush made war inevitable. Yongle's '20 formal reasons' proclamation was used as a psychological warfare element.