17th February 1915.
Western Front.
Small French advances near Roclincourt (north of Arras), near Perthes, and north-west of Verdun.
War underground: On Hill 60 on the Ypres salient of the Western Front, the newly formed “mining” unit of the British Royal Engineers explode their first “deep mine” under German trenches, but it is not enough to enable them to take control of the hill.
Two Zeppelins wrecked off north-west Denmark.
German Zeppelin Z3 is brought down in Denmark and put permanently out of action by a storm. Also today, Zeppelin Z4 is taken out of service. Both aircraft have recently been involved in a raid on the coast of Norfolk, England, late in January 1915.
Z3
Eastern Front.
Russians defeated on line Plotsk-Ratsionj (north-west Poland).
Memel reoccupied by German forces.
Great battle near Nadworna and Kolomea.
Austrians take Czernowitz (Bukovina).
Naval and overseas.
The seaplane carrier HMS Ark Royal arrives off the Island of Tenedos to conduct air operations in support of Royal Navy vessels attacking Turkish fortifications in the Dardanelles.
In Quincy, Massachusets, the US navy lays down the new keels of L-class submarines L-10 and L-11.
Political.
The British War Office experiments today with an early form of tank based on a Holt tractor, but the caterpillar tracks become bogged down in the mud, and the project is abandoned, temporarily at least.
Rob.
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