what battle between the French and the Germans lasted eleven months between February and December 1916, resulting in more than a half million casualties on both sides? French

The battle you are referring to is the Battle of Verdun, one of the longest and bloodiest battles of World War I. To find the answer to your question, you can take the following steps:

1. Start by using a search engine like Google or Bing.
2. Enter the keywords "French vs. German battle 1916 more than half million casualties."
3. Look for reliable sources such as historical records, scholarly articles, or reputable news outlets to verify the information.
4. Scan the search results and click on credible sources that provide information about the Battle of Verdun.
5. Review the details provided in these sources to confirm that the Battle of Verdun fits the criteria of being a battle between the French and the Germans, lasting eleven months from February to December 1916, and resulting in significant casualties on both sides.

By following these steps, you can gather reliable information about the Battle of Verdun and its historical significance in World War I.