Apr. 23—British naval forces raid Zeebrugge in Belgium, German submarine base, and block channel.
May 27—Third German drive begins on Aisne-Marne front of 30 miles between Soissons and Rheims.
May 28—Germans sweep on beyond the Chemin des Dames and cross the Vesle at Fismes.
May 28—Cantigny taken by Americans in local attack.
May 29—Soissons evacuated by French.
May 31—Maine River crossed by Germans, who reach Chateau Thierry, 40 miles from Paris.
May 31—"President Lincoln," American transport, sunk.
June 2—Schooner "Edward H. Cole" torpedoed by submarine off American coast.
June 3-6—American marines and regulars check advance of Germans at Chateau Thierry and Neuilly after maximum advance of Germans of 32 miles. Beginning of American co-operation on major scale.
June 9-14—German drive on Noyon-Montdidier front. Maximum advance, 5 miles.