Abstract: A method of initiating the detonation of a warhead of a friendly guided missile and an arrangement for implementing the method. If a friendly guided missile or flying body, during its target approach phase, approaches an enemy missile or flying body, the active radar target seeker of the friendly guided missile is switched to perform a fine range discrimination, and an additional modulated signal is transmitted by the transmit/receive antenna of the active radar target seeker of the friendly guided missile, with this additional signal being received again after reflection at the enemy missile. With the aid of the received signal, the evaluation and control unit of the active radar target seeker generates an image of the enemy missile and determines the position of the warhead within the enemy missile. The warhead of the friendly guided missile is then guided into the vicinity of the warhead of the enemy missile and caused to explode.