Which nation would most likely have the biggest advantage during a European war, and why? Great Britain, because they had the most warships to complement their small army. Germany, because most of the fighting would be on land and they had the largest army. France, because if they called up their reservists their army would be larger than Germany’s. France, because of the combined numbers of their army, reservists, and warships.

The assessment of which nation would have the biggest advantage during a European war depends on various factors, including the specific time period, the nature of the conflict, and the overall military capabilities of the nations involved. However, based on the given options:

The statement "France, because of the combined numbers of their army, reservists, and warships" would likely be the most accurate.

This assessment takes into account not only the size of the standing army but also the potential mobilization of reservists and the strength of the navy. France's ability to mobilize a large army, including reservists, coupled with a powerful navy, could provide a comprehensive military advantage. Nevertheless, it's important to note that the outcome of any war depends on numerous factors, including strategy, tactics, leadership, and the geopolitical context.