You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The Ulm Campaign helped the Germans develop what plan behind the German invasion of France and Belgium in 1914?" whose answer is The Schlieffen Plan.
Each document should contain about 30 words, and these documents should contain useful information.

Query: German invasion of France and Belgium in 1914 plan
Useful Output:

Doc 1: The German plan was to attack the French city of Verdun, a psychologically important town in northeastern France, and to bleed the French dry. The battle--the
Doc 2: Schlieffen's battle plan involved some German troops entering France through  The attack on neutral Belgium also drew England, a guarantor of Belgian
Doc 3: chances in a long war were slim. And yet the German Army of 1914 was  Why France Lost The Battle of Dien Bien Phu 1954 (4K Documentary).
Doc 4: The Schlieffen plan amounts to a critique of German strategy in 1914 since it clearly predicted the failure of Moltke's underpowered invasion of France.
Doc 5: What I can't get over are his eyes. Their resistance delayed the invasion by as much as 18 days. So Germany's plan to invade France and beat