| Conflict: | Battle of Wadi Marsit |
| Partof: | Senussi campaign |
| Date: | 7 April 1915 |
| Place: | Mizda territory, Nafusa Mountains, Libya |
| Result: | Senussi victory |
| Combatant2: | Senussi |
| Commander1: | Colonel Ganinzi Major Sartirana |
| Commander2: | Ahmed al-Sunni |
| Strength1: | 1,400 men |
| Strength2: | 400 men |
| Casualties1: | Heavy |
| Casualties2: | Unknown |
The Battle of Wadi Marsit was a military engagement between the Senussi order and the Italians. The Senussi won a major victory against the Italians.
Instructions were given to Colonel Ganinzi, the commander of the Gharyan military outpost, to move towards Mizda in order to chase the Senussis spreading in those areas and to put down the revolt of Libyans there. The colonel left Mizda on April 3 with a force of 1,400 men, half of whom were irregular forces, to attack the Senussi force of 400 men who were stationed in Wadi Taqja, between Quntrar and Oulad Abi Said, in order to face the Italians. On April 6, 1915, the Italians had reached Wadi Marsit and sent a vanguard for scouting to spot the Senussis.[1]
The scouting party never found the enemy, and the Italians established their camps at 4:00 p.m. to spend the night there. During this time, the Senussi commander, Ahmad al-Sunni, marched from his positions and sent some scouting parties, and while the Italians were building their camps, they heard a gunshot three times. This caused panic in the Italian camp, and the irregular troops began running away from the camp. However, they were stopped by their officers, who pointed their guns against them in an attempt to force them to face the Senussi, which caused infighting in the camp that lasted until late at night, during which Ganinzi was wounded and the command was given to Major Sartirana.[2]
The Major ordered a retreat to Mizda in the night; it wasn't long for the first hours of the new day that the remaining force were attacked by the Senussis, which caused further panic in the ranks. They abandoned their camels and baggage, and the irregular forces began separating from them.[3]
The battle of Wadi Marsit, alongside Battle of Gasr Bu Hadi, was a major victory for the Senussis and a major defeat for the Italians, which temporarily reversed their colonization of Libya and made them retreat towards their coastal colonies.[4] The area would remain under Libyan control until 1924.[5] The defeat was due to ignorance of the territory, and the infighting happened in the camp that weakened the army.[6]