BATTLE OF THE OISE
The flanking lines between which the Germans were directed to the Marne made the battle of the Oise inevitable as far as the Marne salient was concerned. For the salient, there was only this alternative, if its front could not be broadened: it must be "dug in" or be abandoned. But, being necessary, if it could be waged beyond a certain point, it would also become ambitious. It would supplement the Picardy front by continuing its line down to the Marne. Reaching the Oise at Montmacq, it would flank the French salient north of the Oise. Utilizing the Oise and Ourcq Valleys, it would envelop the defensive forests of Aigue, Compiègne, and Villers-Cotterets. This would mean Compiègne. From Compiègne the investment of Paris was possible.
The battle, as far as the Germans are concerned, was probably their most disastrous effort of the war within the given time. Between thirty and thirty-four divisions were completely used up—a cost of over 400,000 effectives. Not only did their advance lack the element of surprise, but it entered a veritable trap. Their front was enfiladed with a destructive fire from impregnable flanks.
The battle was also a revelation; it demonstrated as nothing else the waning man power of the enemy—the desperate mobilization of 16-year-old boys, of old men, of convicts, even.
The artillery preparation, rich in gas shells, began at midnight on June 8-9. On the following morning at 4:30 the attack was launched over the twenty miles from Montdidier to Noyon. And, as usual, there was the northern diversion—the pounding of the British lines by gunfire from Villers-Bretonneux to Arras. Even on the first day of the assault, when the German centre advanced two and a half miles, the French made a spirited counterattack near Hautebraye, between the Aisne and the Oise. On the second day the enemy took at tremendous cost the villages of Mery, Belloy, and St. Maur and debouched from Thiescourt Wood. On the third day, with the aid of four fresh divisions, he managed to reach the Aronde, on the west; to descend a mile astride the Matz and to occupy its northern bank almost to the Oise, in the centre; and to envelop the forest of Ourscamps, on the east. Before the sun set the French, by a counterattack, had entirely won back the gains on the west, with over 1,000 prisoners captured. On the fourth and fifth days (June 13 and 14) the French heavily attacked on the flanks of the centre—at Courcelles and at Croix Ricard. Then came two final kicks from the foe; on June 16 he attempted to cross the Matz near its junction with the Oise and was driven back with heavy losses. The next day he drenched the south bank of the Marne with gas shells, but did not attempt to cross the stream.
All this time abortive diversions had been going on in the north, in the Lys salient, where on June 15 the British and Scottish troops took the initiative and captured two miles of enemy positions seven miles west of La Bassée and just north of Béthune.
THE AUSTRIAN OFFENSIVE
Just as the German defeat on the Marne and Oise was beginning to be realized abroad—its losses calculated, its meaning interpreted—the Austrians, on June 15, suddenly launched an offensive in the mountain region of Veneto and from the left bank of the Piave. So far the enemy has been firmly held in the mountains, but has crossed the river at two places without, however, being able to bring over any effective artillery—on the middle reaches he has gained the Plateau of Montello, defended by the intrenchments prepared there by the British under Plumer last December, and near the mouth he has succeeded in establishing one or two bridgeheads in the vicinity of Capo Sile.
As a military proposition the offensive has lacked the so far inevitable successes of a prepared initiative; in the mountains the first attacks were almost instantly broken up by simultaneous counterattacks. Along the river, especially in the vicinity of the crossings, the battle is developing in scope and intensity.
Aside from the military paradox already noted, this offensive possesses several characteristics, some military, some political, which seem well worth while dwelling upon.