Abstract: This review article outlines the operational requirement for Battlefield Surveillance Radar, and the design challenges that result. It is shown that the clutter problem on the battlefield leads to a Pulse Doppler solution. Design requirements are outlined and a typical current design is addressed. Possible future developments are discussed, and it is argued that future developments will be driven by the need for covert operation, with a drive towards active phased array antennas and LPI waveforms. In both cases, this takes advantage of expected advances in technology, and will lead to a more effective battlefield radar equipment.