Cambodian–Spanish War vs Siamese–Cambodian War (1591–1594)

Iberian forces remained in European-style static garrison doctrine and could not adapt to the tropical guerrilla environment; the Cambodian-Malay side demonstrated asymmetric flexibility blending court intrigue, night raids, and rapid cavalry maneuvers.

Naresuan displayed dynamic maneuver defense by adapting the elephant–musketeer–river fleet triad to circumstances; the Khmer command failed to develop a flexible counter-doctrine beyond static city defense.

War of Annihilation — In the 1599 Phnom Penh raid, the Iberian garrison was physically destroyed, with no possibility of withdrawal.

Siege/Confrontation — The fate of the war was determined by the 1594 siege and fall of Longvek; this was an annihilation-siege campaign for control of the strategic capital.

The Iberian center of gravity was the Phnom Penh garrison — it carried single-point failure risk, and when this point collapsed in 1599 the operation extinguished entirely. The Cambodian center of gravity was a distributed court-coalition structure and could not be targeted.

Naresuan correctly identified the capital Longvek as the center of Khmer will and concentrated all striking power there; Satha locked his center of gravity on capital defense while failing to mobilize peripheral vassal forces.

The Veloso-Ruiz duo initially gained deception superiority by assassinating King Ream II in 1596 and restoring the Satha dynasty to the throne; however Malay-Cham counter-intelligence reversed this move and delivered the decisive blow with the 1599 raid.

Siam deceived Khmer reconnaissance through border incursions and feigned retreats; far from generating strategic deception, Cambodia was instead exposed to the intrigues of European adventurers within its own ranks.

Arquebus and light field cannons initially created shock effect; however due to numerical imbalance, firepower could not be coordinated with sustainable maneuver and psychological superiority could not be made permanent.

The synchronized shock blows of Portuguese muskets and Naresuan's elephant cavalry drove Khmer resistance at Longvek's walls into psychological collapse; Khmer artillery remained scattered and low-tempo.

The monsoon climate periodically severed Iberian maritime resupply; the Mekong delta and tropical forest cover provided ambush and maneuver opportunities to the defender — nature became the ally of the native force.

Naresuan exploited dry-season corridors and the river routes opening toward the Mekong basin; the Khmer side failed to convert Tonle Sap's natural defensive advantages into a coordinated interdiction plan.

While the local court and Muslim merchant network transparently read Iberian intentions, Veloso and Ruiz could not understand the complex factional balances of Cambodian internal politics; this asymmetry culminated in annihilation in the 1599 Phnom Penh raid.

Siam possessed detailed knowledge of Cambodian court intrigues and military weaknesses, while the Khmer side expected an Ayutthaya exhausted by Burmese–Siamese wars — on the contrary, Naresuan was charged with offensive will.

Cambodian-Malay forces consumed scattered Iberian detachments piece by piece with rapid transit capability on interior lines; the expeditionary force was squeezed on exterior lines and supply corridors were severed.

The Siamese army advanced in corps-like separate columns coordinated along both river and land routes, securing interior lines advantage; Khmer forces were worn down by fragmented and delayed reactions on exterior lines.

On the Iberian side, the 'gold and faith' motivation rapidly eroded with logistical collapse; on the defending side, the will to preserve sovereignty and religious-cultural defense reflex (Muslim-Buddhist axis) produced unified resistance.

Naresuan's charismatic leadership aura carried from Burmese victories reinforced the will to win among Siamese troops, while dynastic distrust and fear of plunder deepened the Clausewitzian 'friction' on the Khmer side.

The Cambodian side isolated Iberian forces through a covert alliance with Malay-Cham elements; Sun Tzu's 'break enemy alliances' principle worked in reverse — this time the colonial party was isolated.

Naresuan eroded Satha's will before battle through diplomatic maneuvers to draw Khmer vassal lords toward Ayutthaya and by pressuring Cambodia's trade routes.