4, 455

Trieste, Italian drive, VI, 159, 452

Triple Alliance, I, 133, 141

Triple Entente, formation of, I, 158

Trones Wood, V, 402-403

Troops, transportation of, I, 24

Tsing-tau, defenses, attacks on, capture, III, 48, 52, 60

_Tubantia_, Dutch steamer, V, 62

Turkey, American relations with, VI, 328

Turkish navy, operations of, IV, 170

Turkish troops on the eastern front, VI, 83

Typhus, epidemic of, II, 356;
III, 475

Uganda, protectorate, I, 180

Undersea warfare, IV, 155

Unification of Germany, I, 130

Union of South Africa, rebellion in, III, 70

United States, development of pro-German propaganda in, IV, 505

_U-53_, exploits of, VI, 194

Union of Towns in Russia, VI, 377

Van, concentration of Armenians in, IV, 378

Van, Russian successes in, III, 477

Vaux, French defense of, V, 351, 367

Vaux Fort, French recapture of, VI, 37, 39

Veles, resistance at, by Serbians, IV, 278

Venice, air raids on, III, 426;
VI, 169

Venizelos, attacks of, on Greek Government, IV, 311

Venizelos, E., I, 60;
V, 217

Verdun, attack on, I, 64

Verdun, effect of five months' siege, V, 371

Verdun, French victories at, VI, 54

Verdun, operations around, VI, 19, 53, 281

Verdun, struggle for, IV, 131-142

Victor Emmanuel, address to army, V, 254

Victor Emmanuel III, I, 194

Vienna, congress of 1814, I, 260

_Vigilancia_, sunk, VI, 318

Vilna, campaign against, IV, 187, 192

Vimy Ridge, capture of, VI, 239

Viviani, Rene, I, 318

Viviani, instruction to French ambassador at Vienna, I, 379

Volhynia, Austrians in, V, 138

Von Bernstorff, note to Secretary Lansing in reply to _Lusitania_
protest in Germany, IV, 485

Von Bethmann-Hollweg, IV, 485

Von Buelow, Prince, I, 136

Von Caprivi, General, I, 134

Von Jagow, interviews with, I, 33, 502

Von Mackensen, commands German forces in Serbia, IV, 258

Von Papen, recalled, V, 26

Von Plehve, murder of, I, 156

Von Rintelen, Franz, V, 22-28

Von Tirpitz, Grand Admiral, attitude toward submarine warfare, IV, 484

Vosges, German activities in, IV, 51, 108

Vulkan Pass, capture of, by Germans, VI, 103

War, German declaration of, I, 278

War, declaration of, between United