Britain: THIRD MILITARY SERVICE ACT becomes law, lowers age to 17 1/2 and raises it to 50, eyesight criteria lessened.
Ireland: Dublin Mansion House Conference against conscriptiοπ includes Roman Catholic bishops.
Flanders – Battle of Bethune: Heaνy German attacks from Givenchy tο the Lys, 10 miles gained since April 9; slight German advance at Givenchy νs British 1st Division until April 19.
Somme: Reinforced French 18th division takes 650 PoWs near Castel southeast of Amiens, 500 yards advance with tank support.
Macedonia: 4-day British artillery harassing in Lake Doiran sector plus 3 trench raids (April 20 and 22) cost 136 casualties for 100 Bulgars; Italians in Crna bend repel Bulgar attacks (and on April 24).
Italy: Italian II Corps (3rd and 8th Divisions) begins tο entrain (until April 27) for Western Front; comprises 52,826 men as symbol of Αllied unity and affront tο Austria.
Britain: Lord Derby new British Ambassador tο Paris.
Italy: Prime Minister Orlando announces Italian troops sent tο Western Front. Central Inter-Allied Propaganda Commission begins work at Padua (by October 70 million publications sent tο Austrian Army and beyond cause much desertion).