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: "Nickforce was a formation used in the latter stages of a Battle that was a battle of what?" whose answer is Tunisia Campaign of World War II.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Battle of Normandy formations
Useful Output:

Doc 1: Normandy Invasion, during World War II, the Allied invasion of western Europe, which was launched on June 6, 1944 (the most celebrated D-Day of the war)
Doc 2: H-Hour began at 630 for seaborne troops: two armies, five beaches, six divisions by sea on Utah, Omaha, Gold, Juno and Sword.
Doc 3: Here is a deeper look at how the US military, in particular, launched its assaults against the shores of Normandy – by air, by land, by sea.
Doc 4: The Germans concentrated their most powerful formation, 15th Army, in the Pas de Calais. Normandy was held by the smaller, but still formidable
Doc 5: This column is the first of three D-Day columns written by war correspondent Ernie Pyle describing the Allied invasion of Normandy.