Abstract: A grapple anchor for attachment to a vehicle receiver hitch, the grapple anchor comprising a draw bar having one end adapted to be received into a receiver hitch, the other end rigidly attached to a cross bar which extends perpendicular to the draw bar, the cross bar further including screw jacks rigidly attached to each distal end of the cross bar, the cross bar further including rope eyelets adapted and dimensioned to receive grappling rope there through.

Abstract: A mobile trailer for use with a mobile robot, the trailer comprising a rollable frame for releasably attaching to a robot, a mechanism attached to the frame for selectively dispensing a communication cable, the cable providing communication between the trailer and command centre, a wireless communication mechanism for communicating wirelessly between the trailer and the robot, and a mechanism for selectively moving the trailer between a hitched position and unhitched, such that in the hitched position the trailer being pulled by the mobile robot, and in the unhitched position the trailer being detached from the mobile robot.