Once the Civil War began, Lincoln's primary goal was to maintain or reestablish the union of all the states. His strategy was to negotiate from a platform which provided the largest numbers of supporters. With these priorities in the foreground, the government took considerable time to clarify its position on emancipation as well as its stand regarding the use of freedmen in the Union forces. Lincoln suspected that he would not get the kind of solid and enthusiastic support from the Northern states which he needed if he did not work towards eventual emancipation. At the same time, if he took too strong a position in favor of emancipation he feared that the border states would abandon the Union and side with the South. Similarly, the refusal to use blacks in the Union forces might seriously weaken the military cause. Yet, their use might alienate the border states, and it might be so repugnant to the South as to hinder future negotiations. Early in the war the North was faced with the problem of what to do with the slaves who fled from the South into the Union lines for safety. In the absence of any uniform policy, individual officers made their own decisions. According to the Fugitive Slave Act, Northern officials should have helped in capturing and returning them. When General Butler learned that the South was using slaves to erect military defenses, he declared that such slaves were contraband of war and therefore did not have to be returned. Congress stated that it was not the duty of an officer to return freed slaves. However, on at least one occasion, Lincoln gave instructions to permit masters to cross the Potomac into Union lines to look for their runaway slaves. In August, 1861, a uniform policy was initiated with the passing of the Confiscation Act. It stated that property used in aiding the insurrection could be captured. When such property consisted of slaves, it stated that those slaves were to be forever free. Thereafter, slaves flocked into Union lines in an ever-swelling flood. Besides fighting the war, the Union army found itself bogged down caring for thousands of escaped slaves, a task for which it was unprepared. In some cases confiscated plantations were leased to Northern whites, and escaped slaves were hired out to work them. In December of 1862 General Saxton declared that abandoned land could be used for the benefit of the ex-slave. Each family was given two acres of land for every worker in the family, and the government provided some tools with which to work it. However, most of the land was sold to Northern capitalists who became absentee landlords with little or no interest in maintaining the quality of the land or in caring for the ex-slave who did the actual labor. These ex-slaves were herded into large camps with very poor facilities. The mortality rate ran as high as 25 percent within a two-year period.