The main reason is to know which company can have more power
Invading Russia proved disastrous because of a few reasons:
1) Timing of invasion: While France invaded towards the middle of summer (the best time is summer), it just wasn't enough time to take over the strategic areas before winter set in, leading to the French defeat and eventual retreat from Russia.
2) Sheer size: Russia stretched across Eurasia, and because of this large extent covering thousands of square miles, Napoleon had a hard time locating and decisively taking over the land and guarding it, which led to infiltration, sabotage, and spies from the Russian empire.
hope this helps
The opportunity cost is the value of the next best alternative foregone. Every decision necessarily means giving up other options, which all have a value. The opportunity cost is the value one could have derived from using the same resources another way, though this is not always easily quantifiable.
The reason why Southerners were more likely than Northerners to support the Mexican-American War is because an American victory in the war would lead to more territory in the South being gained (territory once belonging to Mexico).
During the civil war the new warships were known as the Ironclads.
