I, 227

Sarafoff, Boris, I, 242

Sarajevo, I, 260;
II, 277

Sari Bair, attack on, IV, 348

Sarrail, General, commands French troops in Balkans, IV, 279;
V, 215

Sazonov, Russian Minister, VI, 380

Scarpe River, operations on, VI, 253

Scarborough, raids on, II, 247

Schiller, Ernest, V, 65

Schleswig-Holstein, war for, I, 127

Sea command and troop transportation, I, 24

Selective Draft Law, VI, 346

Semendria, bombardment of, IV, 269

Serbia, invasion of, II, 301;
IV, 177

Serbia, offers of peace, III, 376

Serbian retreat to Albania, IV, 303

Serbian army, strength of, in November, 1915, IV, 293-294

Serbian nationality, I, 258

Serbian reply to Austrian note, I, 265-270

Serbian resistance at Babuna Pass, IV, 283

Serbian troops, transport across Greek territory, V, 218

Serbians in Macedonia, VI, 132

Sereth River, crossing by Russian forces, V, 178

Servetsch region, V, 146

Sette Comuni Plateau, Italian successes on, V, 270

Shabatz, battle of, II, 317

Shevket Pasha, I, 244

Shipbuilding program, VI, 343

Shipping Board, creation of, VI, 213

Shipping, neutral loss of, IV, 170

Ships of American registry, seizure by British, V, 49

Shumadia division of Serbian army, heroism of, IV, 275

Sibert, General, with American expeditionary force, VI, 357

Siege of Paris, I, 129

Simonds, Frank H, summary of two years of war, V, 461-502

Simonds, F. H., the theatres of the wars' campaigns, I, 83

Sims, Admiral, commander of American destroyer flotilla, VI, 357

Smith-Dorrien, General, II, 60

Smoke screen, I, 74

Smorgon, fighting around, V, 179

Smorgon, operations around, VI, 80

Soissons, operations around, V, 376

Soldau, capture of, II, 437

Somme, British, and French offensive on the, VI, 27

Somme, battles of, beginning, V, 377

Somme, conditions in situation south of, on July 9, V, 399

Somme front, French and British gains, VI, 19

Somme offensive, German casualties in the, VI, 9

Somme offensive, object of Allies in, V, 377

Somme offensive, spring of 1916, VI, 9

Somme, second phase, V, 401

Souain sector, IV, 71-72

Souchez, attacks on, III, 124-125

Souchez, Canadian raids at, VI, 222

Souchez, French attac