Western Front
Liege and Metz railways bombed by British airmen; Mannheim again attacked. 11 F.E.2s and 5 Handley Page bombers attack Kreuzwald electric power station.
Raid attempted on Paris by about 30 German machines, but only one reaches capital. 72 bombs cause 23 casualties.
A downed German Friedrichshafen G-III bomber at Villers-au-Bois being salvaged by British soldiers: © IWM (Q 12047):
https://twitter.com/CenturyAgoToday...569125801840640
Canadian ace Billy Bishop returns, as Commander of No 85 Squadron (SE5s, with 3 American pilots), scores 27 more victories until June 19. Billy Bishop checks the Lewis machine gun, here still in his old Nieuport fighter:
https://i1.wp.com/ww2-weapons.com/w...uport.jpg?ssl=1
British 13-pounder anti-aircraft guns in action at Villers-au-Bois: © IWM (Q 8810):
https://twitter.com/CenturyAgoToday...538921431748608
A U.S. Marine barrack camouflaged to hide it from German aerial surveillance:
https://twitter.com/CenturyAgoToday...599329899274241
Southern Front
Italy: Increased artillery fighting along Piave; an attack at Capo Sile bridgehead repulsed.
Allied airmen active.
Naval and Overseas Operations
North Sea: HMS
Vega picking up a ditched Sopwith Camel aircraft during anti-Zeppelin operations:
https://twitter.com/CenturyAgoToday...508724087087105
Air-raids on Zeebrugge; a German torpedo boat sunk in harbor.
Mozambique: In East Africa British engage Germans between Nanungu and Mahua; capture guns and ammunition, (60 casualties including 11 Germans, 67 shells and 70,000 bullets), drive Germans westward.
Belgian Congo: Katanga Railway (Bukama – Cape Town) completed.
Political, etc
United States: U.S. Sedition Bill passed, and $300,000,000 voted for ordnance.