The war lasted for three and a half months and involved 1800 battles. More than 45,000 Japanese and puppet troops were annihilated, more than 2,000 kilometers of traffic lines in enemy-occupied areas were destroyed, and more than 2,900 Japanese and puppet army strongholds on both sides of the traffic lines and in the depth of the base areas were captured, which dealt a heavy blow to the Japanese and puppet troops, effectively refuted the rumors that the Eighth Route Army left without fighting, and strengthened the confidence of the people of the whole country in persisting in the war of resistance. American journalist Smedley once described the Hundred Regiments War as follows: from the mountains in western Shanxi to the coast of the East China Sea, from the bank of the Yellow River to the edge of the Great Wall, it has become a battlefield. The Hundred Regiments War hit the enemy's entire economy, communication lines and blockade network, and the fighting was fierce and ruthless.