I think it’s A.Military Strength
France controlled the purple areas.
Do you mean the conflict between 1853 and 1853?
All the parties in this conflict were:
The Ottoman Empire (today's Turkey), which had an alliance with France, United Kingdom and the Kingdom of Sardinia (which was only part of Italy in 1861).
Their opponent was Russia.
1. more para of the interior geography of North America were mapped.
2. The Americans "realized" that from the Atlantic ocean to the Pacif Ocean, there was no water passage.