Deformation system having at least two deformation devices for movable or fixed support structures of rail vehicles, for receiving forces in the event of a collision with a collision object, in particular with a further rail vehicle, comprising in each case one damping installation for impacts, having: - one first and one second buffer element (3, 4) for receiving compressive forces in the collision; - wherein the first and the second buffer element (3, 4) of the respective deformation device are disposed behind one another in the travel direction of the rail vehicle; - wherein the first and/or the second buffer element (3, 4) comprise/comprises: o a buffer for reversibly absorbing energy, in particular at least one absorption element for an at least partial, in particular complete, elastic deformation; and/or o an energy absorption element for irreversibly absorbing energy, wherein preferably the first buffer element has a buffer for reversibly absorbing energy, and the second buffer element has an energy absorption element for irreversibly absorbing energy; - wherein the deformation devices on the vehicle are able to be fastened to the support structure, wherein one climbing protection device is in each case provided for one deformation device, said climbing protection device in the collision being configured to impede lifting of the rail vehicle and/or the collision object, and/or impede telescoping of the rail vehicle over the collision object or vice versa, wherein the climbing protection devices are fastened to and/or supported on the damping installations, and wherein the deformation devices are disposed parallel to the travel direction, characterized in that the second buffer elements of the deformation device are connected to one another and on that side that faces away from the support structure have a common terminal delimitation which spans the intermediate space between the two deformation devices. - one first and one second buffer element (3, 4) for receiving compressive forces in the collision; - wherein the first and the second buffer element (3, 4) of the respective deformation device are disposed behind one another in the travel direction of the rail vehicle; - wherein the first and/or the second buffer element (3, 4) comprise/comprises: o a buffer for reversibly absorbing energy, in particular at least one absorption element for an at least partial, in particular complete, elastic deformation; and/or o an energy absorption element for irreversibly absorbing energy, wherein preferably the first buffer element has a buffer for reversibly absorbing energy, and the second buffer element has an energy absorption element for irreversibly absorbing energy; o a buffer for reversibly absorbing energy, in particular at least one absorption element for an at least partial, in particular complete, elastic deformation; and/or o an energy absorption element for irreversibly absorbing energy, wherein preferably the first buffer element has a buffer for reversibly absorbing energy, and the second buffer element has an energy absorption element for irreversibly absorbing energy; - wherein the deformation devices on the vehicle are able to be fastened to the support structure, wherein one climbing protection device is in each case provided for one deformation device, said climbing protection device in the collision being configured to impede lifting of the rail vehicle and/or the collision object, and/or impede telescoping of the rail vehicle over the collision object or vice versa, wherein the climbing protection devices are fastened to and/or supported on the damping installations, and wherein the deformation devices are disposed parallel to the travel direction,