SERBIA (_for military operations, see_ MACEDONIA): invades Bosnia, 12 Au 4; is invaded by Austria, 13 Au 4; the Austrians take Shabatz, 16 Au 4; the Battle of the Jardar, 17-19 Au 4; the Austrians evacuate Serbia, 25 Au 4; the Serbians invade Hungary and occupy Semlin, 10 S 4; they defeat the Austrians on the Drina, 15 S 4; but evacuate Semlin, 17 S 4; the Serbians reinvade Bosnia, 22 S 4; are driven out, 27 O 4; the third Austrian invasion of Serbia begins, 1 N 4; the Austrians occupy Belgrade, 2 D 4; the Battle of the Ridges, 3-6 D 4; the Serbians retake Belgrade and expel the Austrians, 15 D 4; the fourth Austrian invasion begins, 6 O 5; the Austro-Germans capture Belgrade, 8 O 5; Semendria, 10 O 5; Bulgaria invades Serbia, 11 O 5; captures Vranja, 15 O 5; Veles, 21 O 5; Uskub and Rumanovo, 22 O 5; the Austrians force the Danube at Orsova, 23 O 5; and open a route to Constantinople, 24 O 5; and join the Bulgarians, 25 O 5; the Serbians retake Veles, 25 O 5; and join the French, 27 O 5; the Bulgarians retake Veles, 29 O 5; the Austrians capture Kragujevatz, 30 O 5; the Bulgarians take Nish, 5 N 5 (_now see_ MACEDONIA); the Serbian Govt. leaves Mitrovitza for Prisrend, 23 N 5; the Austrians capture Mitrovitza and Prishtina, the Govt. removes to Scutari, 25 N 5; the Serbian Army retreats into Albania, 28 N 5; Corfu is prepared for Serbian troops, 11 Ja 6; the first Serbian troops land at Corfu, 15 Ja 6; the reorganised Serbian Army is concentrated there, 10 F 6; they advance on Monastir, 3 O 6 (_now see_ MACEDONIA); they recapture Nish, 12 O 8; Ipek and Novi Bazar, 14 O 8; approach the Danube, 20 O 8; the French occupy Negotin, 22 O 8; the Serbians reoccupy Belgrade, 1 N 8 Sereth, fighting on the, 2-9 S 5; a Russian attack on the, 4 Au 6 Seringes captured by American troops, 31 Jl 8 Serre captured by British, 25 F 7 Shabatz captured by Austrians, 16 Au 4 Shaiba, the Battle of, 12-14 Ap 5 Shatt-el-Adhaim, fighting on the, 8, 17, 24, 30 Ap 7 Shavli occupied by Germans, 1 My 5; they evacuate it, 11 My 5 Sheerness, air-raid on, 22 O 6 Sherif of Mecca: _see_ Grand Sherif SIAM declares war on Germany and Austria, 22 Jl 7 Sidon occupied by British, 7 O 8 Silistria captured by Bulgarians, 9 S 6 Silvertown, explosion at, 19 Ja 7 _Simoon_, H.M.S., sunk, 23 Ja 7 Sinai, an Australian success in, 16 My 6; a British raid on El Arish, 18 My 6; the British occupy El Arish, 21 D 6; and Magdhaba, 23 D 6; the Battle of Rafa, 9 Ja 7; the British capture Turkish advanced posts, 20 F 7 (_now see_ PALESTINE) Singapore, mutiny at, 15 F 5 Sinn Fein leaders arrested, 17 My 8 Sinneh capt. by Russians, 5 Mh 6 _Sirius_, H.M.S., sunk, 23 Ap 8 Siwa, action at, 5 F 7