SHOWING THE AMERICAN-FRENCH ADVANCE FROM SEPT. 12 (12/9) TO NOV. 11 (11/11), 1918
Two secondary attacks on Sept. 12 held the enemy at the bottom of the salient, while the main attacks on the flanks crushed in the latter, as in the jaws of a vise. On Sept. 13, the Germans, in danger of being cut off, were forced to evacuate the salient.
Flattening out the Salient, Sept. 12, 1918
(See map above.)
Despite all the precautions taken by General Pershing to ensure the secrecy of his troops’ movements in the St. Mihiel sector, the Germans expected the attack, and as early as the beginning of September began to withdraw their heavy guns, and to make active preparations for the total evacuation of the salient. However, General Pershing did not give them time to do this, and ordered the attack to be made on September 12, at 5 a.m. for the 1st and 4th Corps, and at 8 a.m. for the 5th Corps.
The attack had been worked out in minute detail, and the time-table of the advance exactly laid down. Everything took place as arranged. After an artillery preparation lasting four hours, the American divisions advanced, supported by a certain number of tanks, half of them driven by Americans and the other half by Frenchmen. Accompanied by soldiers whose duty it was to cut the barbed wire, and by men armed with “bangalore torpedoes,” the Americans advanced in successive waves. They soon reached the enemy trenches and fell unexpectedly on the demoralized foe in the middle of a fog.
On September 12 (12/9) the 1st Corps quickly took Thiaucourt, whilst the 4th Corps, operating on the left, advanced beyond Montsec and reached Nonsard, further north. At the point of the salient, the 2nd French Colonial Corps gradually attained the objectives assigned to it. The 2nd Cavalry Division captured more than 2,500 prisoners with a loss of only fourteen men killed and 116 wounded. At the other end, the 5th American Corps carried the crests of Eparges and Combres, repulsed a counter-attack, and quickly joined hands with the patrols of the 4th Corps at Vigneulles.
On the morning of September 13 (13/9), Generals Pershing and Pétain entered St. Mihiel. In the evening the new front line ran as follows: Herbeuville, Thillot-sous-les-Côtes, Hattonville, St. Benoit, Xammes, Jaulny, Norroy.
It was a fine victory: 16,000 prisoners, 443 guns of all calibres, and huge quantities of stores and munitions were captured, with a loss of only 7,000 killed and wounded.