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: "who was involved in the battle of ortona?" whose answer is Canada.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Battle of Ortona
Useful Output:

Doc 1: Battle of Ortona · December 20-28, 1943, the rubble-filled streets of Ortona saw fierce hand-to-hand-fighting · Thanks to Canadian soldiers,
Doc 2: The battle of Ortona occurred between German and Canadian forces from December 20 to December 27, 1943, during World War II (1939–1945).
Doc 3: Ortona was the harshest of the series of assaults conducted against Gustav Line during the month that came to be known as "Bloody December".
Doc 4: Faced with the international political debate, it is worth mentioning the fierce and bloody battle of Ortona, fought from December 20 to 28,
Doc 5: This fifth installment of the Urban Warfare Project Case Study Series examines the Battle of Ortona, tracing the fighting over the course of