Such were the spectacular aspects of the battle. It remains to sketch its phases as, first sullenly, then swiftly, the tide of conflict rolled backward across the miles of country between Sezanne and Rheims.

These developments can best be followed day by day.

September 5.—General movement of the German armies across the Marne. The troops of von Kluck crossed at Trilport, Sommery, and La Ferté-sous-Jouarre; those of von Bülow at Château-Thierry; those of von Hausen at Epernay, and Duke Albert's at Chalons. Simultaneously columns of von Kluck's 2nd and 4th Reserve corps began to cross the Ourcq.

From the Marne the Germans pushed on without delay to 원주치과 the south. The 3rd, 4th, and 7th corps of von Kluck's army were on the march diagonally across the British near Coulommiers. They were making for La Ferté Gaucher. In face of this advance the 5th French army fell back on the latter place. This move[Pg 70] lengthened the German flank and laid it more completely open to a British attack.

September 6.—General Joffre gave orders for a general advance. Before daybreak the 6th French, British, and 5th French armies began a combined offensive. While the 6th French army advanced eastward towards the line of the Ourcq, the British advanced north-east to the line of the Grand Morin, and the 5th French army north from east of La Ferté Gaucher upon Montmirail.