From 2 June 1917 to 6 April 1918 the 1st Division was responsible for the subsectors of
Neuve-Chappelle and
Ferme du Bois of the Portuguese Sector of the Western Front. After heavy losses in the Front, the 1st Division was removed from the front line, three days before the 9 April 1918 German offensive that gave origin of the
Battle of the Lys, where CEP was virtually destroyed. In July 1918, the 1st Division was the core for the reconstruction of the CEP and participated in the final Allied offensive. The 4th Company of IV Battalion the 1st Division, under the command of captain Barros Bastos made a final assault against the German positions near the
Scheldt river on 11 November 1918, the same day of the
Armistice. This was the last Portuguese combat action of World War I. ==References==