April 3—Several thousand Bulgarian irregulars cross the Serbian frontier near Vallandovo, surprising and killing the Serbian guards; Serbian reinforcements, after an all-day fight, repulse and scatter the invaders; Bulgarians lose heavily.
April 4—Serbia protests to Bulgaria because of the raid, which is said to be the fifth of the kind since the beginning of the war; the Bulgarian Minister to Rome says that the raid is the work of Macedonian revolutionists in Serbia.
April 6—Bulgarian Government disclaims responsibility for the raid on Serbia; it is stated that the invasion was initiated by Turks among the inhabitants of that part of Macedonia included in Serbia; Serbians are not satisfied and say that more attacks are being planned on Bulgarian soil, with the object of cutting off supplies from the Serbian Army.
April 10—Disease conditions are growing worse and the percentage of deaths from typhus is very high; 107 Serbian doctors out of 452 have died of typhus; the municipality of Uskub decides to name its finest street after Lady Ralph Paget, who has been working in Serbia with the Red Cross and is now convalescing from a resultant illness.
April 16—Rockefeller Foundation War Relief Commission’s first installment of a report on Serbia states that disease is spreading all over the country; there are more than 25,000 cases of typhus, while other fevers are also epidemic; cholera is expected with the warm weather; the nation is declared unable to aid itself.
April 17—The Government submits to Parliament a new army credit of $40,000,000.
April 21—Two invasions into Serbian territory are made by Bulgarian irregulars.
April 28—Serbia holds 60,000 Austrian prisoners.
April 7—Sweden makes a strong protest to Germany against seizure of the Swedish steamer England.
April 13—German shells fall upon Swiss territory for the third time since the war began, according to a Delemont newspaper; the shots were intended for the French, but the aim was bad and they dropped near the town of Beurnevesain.
April 1—Troops are being concentrated at Adrianople as a precaution in case war starts with Bulgaria.
April 2—Both the Turkish and Russian Ambassadors to Italy deny a report that Turkey is seeking a separate peace.
April 7—Field Marshal von der Goltz, in an interview in Vienna, says that Turkey is well prepared for war; she has 1,250,000 well-trained men and several hundred thousand reserves; the Sultan gives an interview at Constantinople to American newspaper men; he deplores “unjust” attack of Allies on the Dardanelles, adding that he does not believe the strait can be forced.
April 15—Pillage and murder are reported to be rife in villages and smaller towns of the littoral near Smyrna; lives of Christians are in danger.