Ireland: EASTER RISING (until April 30).
Russia: Tsar approves tax on incomes over 850 roubles per year (from January 1, 1917).
Salonika: General Mahon authorized to move British troops right up to Greek frontier, French already pushing north and west along Monastir railway.
Mesopotamia: 15-volunteer crewed paddle steamer Julnar gets within 8 1/2 river miles of Kut with 270t of food before being snared in Turk steel wires (2 Victoria Cross won). In Kut now 15 dysentery deaths per day.
North Sea: After US protests Germany decides to adhere to prize law in U-boat operations (Scheer told during sortie and radio recalls all U-boats to base, but U20 and U45, unaware, sink 8 ships of 26,751t until May 8).
Dover Patrol begins laying 13-15-mile ‘Belgian coast barrage’ of moored nets with mines and two lines of deep mines (10 minelayers), 4,862 mines in 16 fields (12 miles from shore). Despite attacks by seaplanes, 3 destroyers and shore guns (which hit destroyer Melpomene and 3 others) barrage completed by May 7, which destroys coastal submarine UB13 (May 24).
Switzerland: Second International Socialist conference (until April 30) in Kienthal; 43 delegates (10 parties including German and French). Lenin fails to convince majority.
Britain: Government replies to US note from October 21, 1915.