Brock’s regiment on its return from Holland was quartered in Jersey, where it remained until early in 1801. By this time Britain found herself forced to fight a multiplicity of foes. Even Russia had gone over to the enemy, whose forces daily grew larger and who were spending time and money in preparation. The line-up looked unequal. On the one side was Britain. On the other was France, Russia, Sweden, Denmark, and Prussia. Denmark and Russia had a large fleet in the Baltic. If the fleets of these two nations should combine with that of France, British supremacy on the sea would be endangered. As long as she ruled the waves she was safe from the schemings of Napoleon. Although war had not been declared, a naval expedition against Denmark as the pivotal foe was decided upon. Meanwhile there was more trouble in Brock’s regiment. His second in command, Lieutenant-Colonel Sheaffe was a brave soldier, but he laid too much stress on the necessity for rigid and even harsh rule. The men were sick of this unnecessarily stern disciplinarian who, unlike Brock, did not temper justice with kindliness, and were daily growing more resentful. On one occasion, when Brock returned after a temporary absence, his men on parade cheered him wildly. He sensed in a moment the situation. He knew that Sheaffe was needlessly autocratic, and he could see that the men had grown more and more dissatisfied. Still the display of rejoicing at his return was a flagrant breach of army discipline. Unwillingly enough, he ordered his men to be confined to barracks for a week. We can appreciate what it cost him, under these circumstances, to be stern. When the fleet was ready for action it was despatched to the Baltic under the command of Admiral Sir Hyde Parker, with Nelson as second in command. With the fleet went a land force under the command of Colonel William Stewart, a fine soldierly man, who had the virtues of initiative and action; Brock with the 49th accompanied Colonel Stewart, to whom he stood next in seniority. When the expedition reached its destination it was decided to attack Copenhagen at once with a portion of the fleet and the land forces, all under the command of Lord Nelson.