 From early 1943 onward Burou first served as a second lieutenant in the French Expeditionary Corps and eventually left North Africa as a military surgeon of the 2nd Moroccan Mountain Division to actively join battle at the French island of Corsica and the Italian river Garigliano and mountain of Cassino.Together with New Zealand and Indian troops, his division forced through the German Gustav Line at Cassino on May 13, 1944, the turning point in the liberation of Italy, and lost 1120 men in the process.After the liberation of Rome, Venice, and Siena, Burou landed at Cassis for the Allied campaigns in the Provence, the Alps, the Vosges, and the Alsace.