Tsar Nicholas ordered the mobilisation of troops on July 29th and Kaiser Wilhelm mobilised theirs on the 30th. Because Russia had such a large army to mobilise on such a large border, Germany believed they had to take out France first. Luckily, they had planned for this.
In 1906, Alfred Von Schliefen had devised a plan in case they needed to invade France. He proposed a plan of going through the Lowlands, of Belgium, Luxembourg and the Netherlands, before attacking France from it’s northern border, encircling Paris, assuring a swift victory. The front could then be moved to Russia and their large army to focus on that front.
The invasion of Belgium began. Having reassured it’s safety, Britain joins the war against Germany, sending troops down to France. However, the advance slows at the heavily fortified city of Liege. Once the city was captured, the German’s committed brutal war crimes against the civilian population. The Triple Alliance spread propaganda, denouncing the German’s actions in the Belgian cities, making many neutral countries opinions of Germany turn sour.
France began to make a push into the German territory but were pushed back at a heavy cost in the Battle of the Frontiers
The British troops eventually make an advance and fight with German troops at Mons. However, they were vastly outnumbered and had to retreat to the French frontline at the Marne River. It seemed as though the Schlieffen Plan would be a swift success.
However, the German’s needed to secure a naval port. The Allied Armies and the Germans quickly ran to the coast trying to flank one another, forming a full frontline, colliding at the First Battle of Ypres. However, due to some light tinkering from Helmuth von Moltke, the German line was under supplied so could not advance past this point for the meantime. The two lines began to dig in, building a network of trenches across the frontline.
Many believed that the plan itself was flawed and was destined to never work. Others claim that due to Moltke’s meddling, the plan failed. But no matter what you think was the cause for the Schlieffen Plan’s failure, the era of Trench Warfare had begun.
