'Fight' in the Bible

Then said he, Knowest thou wherefore I am come unto thee? and now will I return to fight with the prince of Persia: and when I go forth, lo, the prince of Greece shall come.

And the king of the south shall be moved with anger, and shall come forth and fight with him, even with the king of the north; and he shall set forth a great multitude, and the multitude shall be given into his hand.