- For the past several days corps from the German 11th and the Austro-Hungarian 2nd Armies have been attacking the Russians lines south of Mosciska and east of Przemysl, aiming to straighten out the front and seize the ground from which the resumption of the offensive will begin on the 13th. Despite some successes, however, the Russians have held their positions tenaciously, and after minor successes Mackensen orders a halt to the attacks today, it being more desirable to conserve the strength of the armies for the major operation ahead.
To the southeast, the Russian VI Corps continues its counterattack against the left wing of Südarmee, forcing General Linsingen to redeploy a division and brigade of Austro-Hungarian infantry from his right wing to the left, and pull back those forces in the centre that had already crossed the Dniester. Though Südarmee is able to contain the Russian advance, Linsingen is forced to postpone assembling a strong force on the north bank of the Dniester to roll up the Russian defensive positions along the river.
- Upon Italy's entry into the war, Britain and France dispatched warships to reinforce the Italian fleet in the Adriatic, as per the naval convention signed between the three powers on May 10th. Since that time, the combined fleet has been conducting naval exercises, so as to acquaint themselves with each other and learn to be able to operate (in theory at least) as a single cohesive force. The warships, however, do not make a particularly impressive sight: the French capital ships are poorly handled, the Italian ones emit sufficient smoke as to obscure each other and any potential target, and the British ones are very much the dregs of the Royal Navy, with all the first-rate warships in the North Sea and the second-rate off Gallipoli. The most modern and effective of the British contingent is the light cruiser Dublin, so naturally during exercises today it is torpedoed by the Austro-Hungarian submarine U4. Dublin manages to return to the port of Brindisi under its own power, but it will be out of commission for some time. Hardly the start the Entente had hoped for in the Adriatic, but it has the 'benefit' of being no more successful than the start of the Italian campaign on land.
- Today the second American note on the sinking of the passenger ship Lusitania is formally dispatched to the German government.