This corps received the destination, to march for Rosseyny, leaving the enemy on the right, and from thence directly for Kowno, and, by this unsuspected march, to surprise the last important position. By that means, the communication between us and Poland would be re-opened; and to protect this communication was to be the principal employment of that corps. The 2d corps, under the command of generals Rohland and Szymanowski, was composed of eight battalions of infantry, amounting to about 3,000 men; all the cavalry which was recently formed in Lithuania, consisting of nearly 1,000 horse; and an artillery, commanded by the brave colonel Pientka, consisting of 12 pieces of cannon. This corps was directed to march upon Polonga, a port on the Baltic. It had been rumored that two French vessels with arms, funds, and ammunition, together with a small body of volunteers, were cruising near that port. After they should have received these expected supplies, the corps was directed to march towards the Dwina, and, by following along the banks of that river, to observe and interrupt the communications between the forces of the enemy in Lithuania, and the province of Courland. The 3d corps, under general Dembinski, was composed of three battalions of infantry of the 18th regiment, recently formed, consisting of about 1,000 men; two squadrons of the lancers of Poznan, two squadrons of the lancers of Plock, and one squadron of the 3d regiment of Hulans, in all, about 500 cavalry; and seven pieces of artillery. This corps received orders to march for the environs of Szawla, traversing the forests, and leaving the enemy on the right; from thence to take a direction to Wilkomierz, and thence to the environs of Wilno, and to attack that city, if circumstances might allow of it; and then to manoeuvre in the department of Minsk, and in the forests of Bialystok, acting there in support of the insurrection, and collecting the forces of the insurgents. An important object of this corps was to support a communication with the corps of general Chlapowski. This plan, the reader will observe, was, in many of its points, the same with that suggested by colonel Valentin.