Battle Of Delvar
On August 1915, Delvar was a major battlefield in the Persian Campaign of World War I and saw a local commander, Rais Ali Delvari, with his Tangestani forces successfully resist a British expeditionary force attempting to invade Iran from the south. The British had occupied Bushehr on August 8, 1915 as part of their own efforts to stop the growing influence of Germany and protect their empire interests. They had dispatched an expeditionary force made up of the 96th Berar Infantry and Royal Marines to Delvar to suppress any local resistance to British rule over the area. Even though the British used their superior naval gunfire from a ship called HMS Juno and were able to burn down the village of Delvar before battle, Delvari's local fighters and local tribesmen provided unexpected resistance. The British did destroy the local fort; however, because of the high number of casualties they had suffered and the fact that they did not have actionable maps on the ground as well as the determined and aggressive actions of the local Tangestani fighters under Delvari, the British were forced to withdraw back to the safety of Bushehr. The British considered this to be a punitive expedition; however, this battle is viewed in Iran as a defining moment of popular resistance to British colonial expansion and is credited as helping to establish September 2 as Iran's National Day of Resistance to British Colonialism
| Battle Of Delvar | |||||||
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| Part of Persian campaign (World War I) | |||||||
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| Belligerents | |||||||
 German Influence (Alleged) |
 Naval Landing Party | ||||||
| Commanders and leaders | |||||||
 Reza Khan |
Percy Sykes (WIA) | ||||||
| Strength | |||||||
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~ 150 – 200 |
~ 600 – 1000+ | ||||||
| Casualties and losses | |||||||
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Persian Tactic
Ali Delvari and Reza Khan did not attempt to engage British forces in a straight-up, flat-field battle, where British warships and British-trained infantry would have the greatest chance of winning; instead, they used hit-and-run ambushes during the daytime and ambushes and night raids at nighttime to attack quickly and with good accuracy before retreating back into the familiar, easily-accessible areas of the territory that they were familiar with. Continued ambushes led to substantially higher casualties among the British forces and a huge amount of psychological pressure on the British command to abandon the area, determining that it was not worth the cost in human lives, casualties, and deterioration of their longer-term strategic plans to hold the area, leading to an ultimate withdrawal to the sea.
Celebration
The immediate aftermath of the August 1915 Battle of Delvar, it witnessed conflicting human emotions, popular assuagement and tactical reformation in the local Tangestani community. Despite modern Iranian remembrance of this battle as a national pillar of triumph, the original observance was more small and raw and connected primarily to the South of Iran Movement and the region's traditional tribal customs.
With British expeditionary forces departing towards their ships, the mood in the affected villages oscillated between great relief and religious growth. Local (village based) military forces (used) the fact they had successfully defended their village from an invading superpower through tenacity and local geography and gathered together to share a meal while exchanging stories of bravery.
Beyond being just a military victory, the Battle at Delvari became a moral one, affirming their resistance against foreign rule. As a result of the Battle at Delvar, Reza Khan and Rais Ali Delvari became legendary in their lifetimes, in turn producing a spark of glory that resounded the entire Province of Bushehr converting the act of funeral rites for those killed at the Battle at Delvar into acts of defiant support and generating interest from future generations to join the fight for Iranian self-determination.
