June 22—The Austro-Germans recapture Lemberg.
July 2—Naval action between Russian and German warships in the Baltic.
July 8—Germany sends reply to note of June 9 and pledges safety to United States vessels in war zone under specified conditions.
July 15—Germany sends memorandum acknowledging submarine attack on "Nebraskan" and expresses regret.
July 15—Conquest of German Southwest Africa completed.
July 21—Third American note on "Lusitania" case declares Germany's communication of July 8 "very unsatisfactory."
July 12-Sept. 18—German conquest of Russian Poland. Germans capture Lublin (July 31), Warsaw (Aug. 4), Ivangorod (Aug. 5), Kovno (Aug. 17), Novo-georgievsk (Aug. 19), Brest-Litovsk (Aug. 25), Vilna (Sept. 18).
July 25—American steamship "Leelanaw" sunk by submarines; carrying contraband; no lives lost.
Aug. 4—Capture of Warsaw by Germans.
Aug. 19—White Star liner "Arabic" sunk by submarine; 16 victims, 2 Americans.