Western Front
Two German aircraft (1 lost to Dunkirk RNAS) drop 4 bombs on Sheerness (no casualties); 1 aircraft’s drops 3 bombs on Margate and wounds 2 people (October 23).
48 Anglo-German air combats, RFC lose 2 aircraft, claim 7.
French troops with a 145 mm naval gun at Hardecourt-aux-Bois:
http://imgur.com/006k3DA* © IWM (Q 78049)
Eastern Front
Dobruja: Constanza (Dobrudja) captured by German and Bulgarian forces.
Galicia: Stiff fighting north of Halicz (until October 23).
Southern Front
Macedonia: Bulgars reinforced by Germans, counter-attack; everywhere repulsed and lose ground (Cherna front).
Asiatic and Egyptian Theaters
Sinai: Affairs in the Dakhla Oasis end (see 17th).
Naval and Overseas Operations
A squadron of German navy destroyers off Heligoland:
http://imgur.com/3Nw0Zhh
East Africa: Portuguese now 8 miles north of river Rovuma. Major Kraut storms NRFF Hill at Mkapira and invests position (until October 30) until beaten over river Ruhuje after 124 casualties, 1 gun and 3 MGs lost.
Political, etc.
Belgium: In occupied Belgium, Ghent University is transformed into a Flemish academy by the Germans (nicknamed Von Bissing University).