Air War
Britain: Strasser (new ‘Leader of German Navy Airships’) rashly attempts London raid on nearly shortest night of year with 4 Zeppelins (2 return early). L42 (Dietrich) fortuitously detonates a Ramsgate naval ammo store, but L48 (Schütze, Strasser’s deputy) hounded to death from c.13,000ft over Suffolk by 3 RFC aircraft after suffering double engine failure (night June 17-18, 3 survivors).
Southern Fronts
Trentino: Italians vainly attack Austrian Mt Ortigara positions all day, losses over 6,000 soldiers.
Sea War
Mediterranean: Allied blockade of Greece lifted, frees small craft for anti-submarine duties.
