'War' in the Bible

I beheld, and the same horn made war with the saints, and prevailed against them;

And after the threescore and two weeks shall the anointed one be cut off, and shall have nothing: and the people of the prince that shall come shall destroy the city and the sanctuary; and the end thereof shall be with a flood, and even unto the end shall be war; desolations are determined.

And his sons shall war, and shall assemble a multitude of great forces, which shall come on, and overflow, and pass through; and they shall return and war, even to his fortress.

And he shall stir up his power and his courage against the king of the south with a great army; and the king of the south shall war in battle with an exceeding great and mighty army; but he shall not stand; for they shall devise devices against him.