用英语怎么说大作战

"大作战" (dà zuòzhàn) can be translated into English as "major battle" or "major campaign." This phrase is often used to refer to a significant military conflict or operation, especially one that involves a large number of troops or resources.
The phrase "大作战" comes from the Chinese language and is composed of two characters: "大," which means "big" or "major," and "作战," which means "to fight" or "to engage in combat." Together, these characters form the phrase "大作战," which refers to a large-scale military conflict or operation.
Here are a few example sentences using the phrase "major battle" in English:
The Battle of Gettysburg was a major battle of the American Civil War.
The Allied invasion of Normandy was a major battle of World War II.
The Battle of the Somme was a major battle of World War I, with more than one million casualties.
And here are the corresponding translations of these sentences into Chinese:
美国内战中的葛底斯堡之战是一场大作战。
第二次世界大战中的诺曼底登陆是一场大作战。
第一次世界大战中的萨姆战役是一场大作战，造成了超过一百万的伤亡。