Italian Front: General Boroevic (from Third Army outside Przemysl, Eastern Front) takes over new Austrian Fifth Army, orders that ‘the troops should construct positions, place obstacles in front of them and remain there’. King of Italy’s Order of the Day warns of tough Austrian resistance. Cadorna orders further Italian advance.
Isonzo: Italian Second Army attack Mt Sabotino five times and attempt to seize Gorizia until next day.
Trentino: Italians occupy Ala and Grado in front of Austrian defences.
Artois: Near Souchez French capture Les Quatre Bouquetaux and Ablains-St Nazaire.
Meuse: Fighting in Bois-le-Pretre.
Flanders: Field Marshal French cables London, no more attacks until artillery ammo replenished, German Fourth Army reports the same.
Baltic Provinces: Russians retake Kindowary near Shavli and Bubie (May 28).
Galicia: III Caucasus Corps is reduced to 4,000 soldiers, but is retaking Sieniawa.
Britain: First Lord of the Admiralty CHURCHILL RESIGNS, Balfour succeeds.
Germany – First major French bombing raid: 18 Voisins attack poison gas works at Ludwigshaven, 90 bombs start fires.