sentences:  In May 1941, the "Force Publique", under Major-General Auguste-Éduard Gilliaert and Lt.-Col. Leopold Dronkers Martens, successfully cut off the retreat of Italian army of General Pietro Gazzera at the Siege of Saïo in the Ethiopian Highlands, later accepting Gazzera's surrender with 7,000 of his soldiers.Over the course of the campaign in Abyssinia, the "Force Publique" received the surrender of nine Italian generals, 370 ranking officers and 15,000 Italian colonial troops before the end of 1941.Some 500 Congolese soldiers and 4 Belgian officers were killed during the campaign.