The silent and inflexible Grant had struck the first great blow for the North.

The immense Confederate line in the west was driven far southward, and the capital of one of the most vigorous of the secessionist states was now held by the Union.
But a little later, news not so pleasant came to them.

The energy and success of Grant had aroused jealousy.

Halleck, his superior, the general of books and maps at St.Louis, said that he had transcended the limits of his command.

He was infringing upon territory of other Northern generals.