Battle of San Lorenzo River

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Battle of San Lorenzo River" – news · newspapers · books · scholar · JSTOR (October 2020) (Learn how and when to remove this message)

Battle of San Lorenzo River
Part of the Paraguayan War
Date April 28, 1865 Location San Lorenzo River, Argentina Result Paraguayan victory
Belligerents
Paraguay	Argentina
Commanders and leaders
José de Jesús Matínez	Unknown
Strength
50 horsemen	400 horsemen
Casualties and losses
4 killed	200 killed and wounded

The battle of the San Lorenzo River was the first engagement between Paraguayan and Argentine forces in the Paraguayan War. The combat took place near the San Lorenzo River, in Argentina, on April 28, 1865 during the Corrientes Campaign and ended with the victory of the Paraguayans.