Ottoman–Persian War (1821–1823) vs Russo-Persian War (1826–1828)

The Qajar army exhibited asymmetric flexibility by hybridizing European drill with traditional cavalry doctrine. The Ottomans, hamstrung by the Janissary Corps' resistance to reform, were locked into static and cumbersome defense — one of the triggers for Mahmud II's 1826 Auspicious Incident.

Russian command transitioned flexibly between static siege and dynamic maneuver; Iran failed to synthesize classical tribal cavalry doctrine with modern firing lines, falling into doctrinal lock-in.

Attrition War — A long-form depletion campaign aimed not at territorial conquest but at exhausting the Ottomans on two fronts and forcing political concessions.

War of Attrition — what began as Iran's revanchist offensive evolved into a protracted Russian campaign of methodical fortress sieges and urban captures designed to break Iranian will.

The Qajar side correctly identified its Schwerpunkt at Erzurum, since the city's fall would unravel the entire Eastern Anatolian defensive line. The Ottomans, forced to split their center of gravity between the Greek and Eastern fronts, achieved concentration nowhere.

Russia identified the Schwerpunkt correctly: the Erivan fortress and the city of Tabriz. The sequential capture of these two nodes broke the spine of Iranian resistance; Iran dispersed its center of gravity, failing to mass force on the Shamkhor-Ganja-Tabriz axis.

Persia conducted propaganda among border tribes — particularly Kurdish and Azeri elements — successfully fomenting unrest in the Ottoman rear. Ottoman deception capacity remained virtually nil.

Paskevich employed feigned withdrawal maneuvers during the Erivan siege to deceive Iranian relief forces; Iran demonstrated negligible strategic deception capacity, with movement plans largely anticipated by Russian intelligence.

Abbas Mirza's modernized artillery batteries achieved clear fire superiority before the walls of Erzurum; however, cavalry shock value was constrained by mountainous terrain and shock–maneuver synchronization remained incomplete.

Concentrated Russian artillery fire at Elizavetpol shattered Iranian infantry lines; the traditional Qajar cavalry shock charge proved ineffective against modern firepower, a pattern reinforced at Javanbulak.

The harsh winter and mountainous terrain of Eastern Anatolia favored the defending Ottomans; yet the 1821–1822 cholera pandemic decimated both armies, elevating the 'Heaven' factor as the decisive determinant and effectively halting the Persian advance.

The narrow defiles of the Aras Valley and Erivan's elevated position initially favored Iran; however, during winter 1827-28 the Russians demonstrated mountain-warfare capability, reversing the terrain advantage.

Abbas Mirza read Ottoman internal dynamics — Janissary–Palace tension and the Greek-front burden — with precision, while the Sublime Porte underestimated Tabriz's military reform capacity and the impact of Russo-British advisors.

Paskevich possessed detailed knowledge of regional geography and Qajar court rivalries; Abbas Mirza misread the window opened by Russian internal crisis (Decembrist revolt) and missed the opportunity moment.

Abbas Mirza's mobile divisions — leveraging interior lines along the Bayazid–Erzurum axis — demonstrated rapid maneuver capability. Ottoman forces, hampered by the Janissary structure's immobility, were pinned to static defense on exterior lines.

Paskevich's corps-level coordinated advance secured the interior lines advantage along the Erivan-Nakhchivan-Tabriz axis; Iranian forces, trapped on exterior lines, responded piecemeal and lagged in force concentration.

Qajar forces attacked under the morale-boosting narrative of 'reclaiming lost Safavid lands'; Ottoman troops experienced motivation erosion from the 'friction' of being squeezed between the non-Muslim revolt in Morea and a Shi'a offensive in the East.

Russian troops carried high morale from post-Napoleonic imperial pride and Armenian volunteers from religio-ethnic motivation; the Iranian army suffered mass morale collapse after Tabriz fell, with Clausewitzian friction mounting against Tehran.

The Qajar side chose the precise moment when the Ottomans were locked in the Morean Revolt to declare war — itself a textbook application of Sun Tzu's principle of catching a divided enemy. The Ottomans were forced to the negotiating table without securing diplomatic alliances.

Russia diplomatically courted Caucasian khans and the Armenian Catholicosate before hostilities, collapsing Iran's regional alliance base and pushing Tehran into strategic isolation before battle was joined.