The British transport Transylvania is sunk by a submarine in the Mediterranean (over 400 lives lost).
May 5 (Sat.)
Russia:—The Council of Workmen's and Soldiers' Delegates passes a vote of confidence in the Provisional Government by a narrow majority.
The French advance on a front of 20 miles north of the Aisne and capture important ground towards Laon; they carry the Chemin-des-Dames and the crest of the Craonne Ridge; over 6000 prisoners are taken.
H.M.S. Lavender (sloop) is sunk by a submarine in the English Channel.
May 6 (Sun.)
German counter-attacks on the Aisne Front are repulsed, and the French capture 2000 more prisoners.
May 7 (Mon.)
A German attack on the British near Lens is repulsed.