About this stage of the war, President Lincoln took an active interest in the movements of the armies, although he generally refrained from absolutely directing them in the field. It was not unusual for army commanders to appeal to him for opinions as to military movements, and he was free in making suggestions, volunteering to take the responsibility if they were adopted and his plans miscarried. Hooker, in an elaborate dispatch (June 15th) relating to the anticipated movements of Lee's army from the Rappahannock to the northward, said: "I am of opinion that it is my duty to pitch into his rear, although in so doing the head of his column may reach Warrenton before I can return." The President, answering, said: "I have but one idea which I think worth suggesting to you, and that is, in case you find Lee coming to the north of the Rappahannock, I would by no means cross to the south of it. If he should leave a rear force at Fredericksburg, tempting you to fall upon it, it would fight in intrenchments and have you at disadvantage, and so, man for man, worst you at that point, while his main force would in some way be getting the advantage of you northward. In one word, I would not take any risk of being entangled upon the river, _like an ox jumped half over the fence and liable to be torn by dogs front and rear, without a fair chance to gore one way or kick the other_."( 1) The President, answering another dispatch from Hooker, June 10th, said: "I think Lee's army, and not Richmond, is your objective point. If he comes towards the upper Potomac, follow him on his flank and on his inside track, shortening your lines while he lengthens him. Fight him, too, when opportunity offers. If he stays where he is, _fret him and fret him_."( 2) When deeply concerned about the fate of Winchester (June 14th), this dispatch was sent: "Major General Hooker: "So far as we can make out here, the enemy have Milroy surrounded at Winchester and Tyler at Martinsburg. If they could hold out a few days, could you help them? _If the head of Lee's army is at Martinsburg, and the tail of it on the plank road between Fredericksburg and Chancellorsville, the animal must be very slim somewhere. Could you not break him?_" "A. Lincoln."( 2) Hooker did not cross the river and attack the rear of Lee's army, nor did he "_fret_" Lee's army, nor "_break_" it, however "_slim_" "_the animal_" must have been, and hence Milroy was sacrificed, and the rich towns, cities, and districts of Maryland and Pennsylvania were overrun by a hungry and devastating foe; but Gettysburg came; the Union hosts there being successfully led by another commander --Meade!