I found the August part of my timeline. Take a peak.
This is based on two POD's: that Helmuth von Moltke suffers a heart attack on 10 June, 1914 and that Alfred von Schlieffen doesn't die in 1913. We also need to assume that he is in good health; physically and mentally(Schlieffen that is
).
Schlieffen is asked to return as the German army's chief of the General Staff. Upon arriving, Old Alf discovers that Moltke has drastically altered his Plan for war with France and Russia. A full third of the troops assigned to the pincer move in northern France have been moved to defend in East Prussia and Alsace-Lorraine. Moltke's plan also suggests respecting Dutch neutrality in the hope that the British will stay out of the war.
Schlieffen has not had time to examine his late successor's reasons before the end of June, when the Archduke's assassination adds urgency to the situation. Though he is convinced that the original plan was sound, Alf knows that Moltke must have had reasons for changing it. So, instead of simply returning to the old version, he modifies Moltke's new one.
He grudgingly decides to leave the Netherlands alone, despite worries that the advance may be held up at the fortress city of Liege in Belgium. To deal with this, he assigns the German Second Army to take the city, while the First Army(the one intended to swing around Paris) will be held slightly back, to move through Holland should the advance be slowed in Belgium.
The forces on the french and russian borders are halved to bolster the attacking arm. This brings the attacking forces to 4/5 of the German army; as opposed to the 3/5 in OTL.
August 5: Germany launches an unsuccessful night attack on Liege. No change yet.
August 8: The French Army of Alsace strikes towards Mulhouse in Germany. They make good progress.
August 11: One of Liege's 12 forts falls. Mulhouse in Alsace falls to the French. Schlieffen is becoming impatient.
August 12: Austria-Hungary invades Serbia.
August 14: Two french armies strike into Lorraine. Outnumbered German troops are forced back, and barely manage to halt the advance once reinforcements arrive. Several counter-attacks fail. Schlieffen orders the First Army to invade Belgium from the southern end of the Netherlands. He is forced to assign limited forces to an invasion of Holland proper.
August 15: The First Army moves in the direction of Antwerp. The garrison of Liege, outflanked and already on the verge, surrenders.
World opinion shifts further against Germany.
August 16: The Belgian army is ordered to retreat to the fortified port of Antwerp. Schlieffen diverts troops from the First Army to hold the Belgians in place. To reinforce the critical army, he sends a large chunk of the German reserves; more than making up the difference.
Serbian troops force invading troops to retreat back over the Austrian border.
French advance units reach the Rhine before being driven back.
August 17: The Russian First and Second Armies enter East Prussia, where they face the vastly outnumbered Eighth Army. Schlieffen sends limited reinforcements.
August 19: Brussels is occupied.
August 20: Forces in East Prussia attempt an attack, but lack the numbers to do more than halt the Russian advance. The hesitant local commander, Prittwitz, is sacked and replaced by Hindenburg, with Ludendorff as his chief-of-staff.
British troops invade Kamerun.
August 21: A single French Army is diverted to face the unexpected direction of the German main attack. It delays German armies 1-3 near Namur, Belgium, but withdraws after taking massive losses.
August 22: French and German troops clash in the Ardennes. The French are decisively beaten, but morale remains high. They fall back so that their right flank rests on Verdun.
Two new French armies are hastily created to lead a counter-attack; the Sixth at Paris, and the Ninth near Verdun. The attack must be delayed due to the speed of the German advance, but Schlieffen continues to be unaware of the potential threat.
Ludendorff races most of the forces in East Prussia south in an attempt to defeat the Russian Second Army, while the First Army is to be distracted by an under-strength cavalry division.
August 23: An Austro-Hungarian offensive begins into Russian Poland.
August 24: The advance of the Russian Second Army is delayed in East Prussia, though not as successfully as was hoped
August 26: A German attempt to surround part of the BEF is beaten off, though at a high cost. The German First Army is finding it increasingly difficult to follow its marching orders; logistics have apparently been overestimated and the troops are suffering from the long marches. Still, Schlieffen demands that the First continue to press the BEF, which is in fighting retreat directly in "The Plan's" path.
Togoland falls to French and British troops.
At the battle of Tannenburg in East Prussia the Germans manage a solid victory against the Russian Second Army, which retreats. The attempted encirclement proves impossible, however; they simply do not have enough troops to do it.
August 28: German forces in East Prussia are forced to abandon their attack as the Russian Second Army approaches to join the First.
The Battle of Heligoland Bight proves costly to the German fleet.
August 29: Russian counter-attacks force Austrian troops back into Galicia.
The French Fifth Army strikes against the flank of the German First in an effort to aid the BEF. Totally unable to halt the German advance, it joins the British force as its fighting retreat passes south of Amiens.
August 31: The German Army reaches the limits of its ability to advance. It has retaken most of the lost German territory, including Mulhouse. The Fifth Army has surrounded Verdun, though there is no immediate prospect of surrender. The Second, Third, and Fourth Armies have all crossed the Marne River. The all-important First Army has ground to a halt within sight of the Seine.