GENERAL KNOWLEDGE

Detailed explanation-1: -The desperate Russians, however, adopted a “scorched-earth” policy: whenever they retreated, they burned the places they left behind. Napoleon’s army had trouble finding supplies, and it grew progressively weaker the farther it marched.

Detailed explanation-2: -The French invasion of Russia, also known as the Russian campaign, the Second Polish War, the Army of Twenty nations, and the Patriotic War of 1812 was launched by Napoleon to force the Russian Empire back into the continental blockade of the United Kingdom.

Detailed explanation-3: -They retreated, but not before enacted a “scorched earth” policy, one in which they burned all of the crops as they moved further away from the French. This left Napoleon’s troops with little to eat. All totalled, the French army would lose hundreds of thousands of men during the six-month invasion.