Battle of Mavil Aru

VictorSri Lankan Armed ForcesLt Gen Sarath Fonseka (army commander)
2006vs
Liberation Tigers of Tamil Eelam (LTTE)Velupillai Prabhakaran

A fight over water started the last phase of the Sri Lankan war. The LTTE shut the sluice gates of the Mavil Aru anicut, cutting irrigation to farms downstream, and the army went in to open them.

Date: July – August 2006Where: Mavil Aru reservoir, Trincomalee district, Sri LankaType: Battle
Photo: B. SurajPatro1997 · CC BY-SA 4.0
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Cite

MLA

“Battle of Mavil Aru.” Hindu History, 2026, https://www.hinduhistory.in/battles/battle-of-mavil-aru-2006/. Accessed .

APA

Hindu History. (2026). Battle of Mavil Aru. Retrieved , from https://www.hinduhistory.in/battles/battle-of-mavil-aru-2006/

Result

The army took the anicut and reopened its sluice gates in August 2006, and the ceasefire of 2002 collapsed into open war.

01The sluice gates

Mavil Aru is a small irrigation anicut south of Trincomalee, in an area then held by the LTTE, that fed paddy fields in government-held villages downstream. In July 2006 the Tigers closed its gates. The Nordic ceasefire monitors tried to negotiate, without result. On 26 July the air force bombed LTTE positions and the army began a ground operation toward the anicut. It was the first major ground offensive since the ceasefire of 2002.

02From Mavil Aru to the east

The LTTE answered with attacks around Trincomalee harbour and on Muttur town across the bay. The army fought its way to the anicut and the gates were opened again in August. From there it pressed on to Sampur, the LTTE base overlooking Trincomalee harbour, which it took in September 2006. The fighting spread through the Eastern Province, and the 2002 agreement, though not formally ended until January 2008, was a dead letter.

Why it matters

Mavil Aru is taken as the opening of Eelam War IV, the campaign that ended with the destruction of the LTTE in May 2009.