A method for selectively and dynamically optimising, with reduced fratricide effects, the jamming of P predefined zones or positions in a network of communication transmitters, jammers and receivers comprising a number N_pl of platforms, a number M ≤ N_pl of said platforms (Tx1, Tx2,..., TxN) being equipped with antennae and systems for transmitting useful transmission signals, a number N ≤ N_pl of said platforms (Rx1, Rx2,..., RxN) being equipped with antennae and systems for receiving useful transmission signals, a number J ≤ N_pl of said platforms (B r1, B r2,..., BrJ) managed by a master station being equipped with jamming systems and antennae adapted to prevent any transmissions between entities outside said network, characterised in that it comprises at least the following steps: • measuring the useful transmission signals received by all the N reception platforms, estimating, on the basis of these measurements, the M*N useful propagation channels and transmitting these measurements and estimates to the master station managing the platforms equipped with jamming antennae; • measuring all the jamming signals received by the N reception platforms, estimating, on the basis of these measurements, the J*N fratricide propagation channels and transmitting these measurements and estimates to said master station; • computing, in the master station and on the basis of the measurements of the transmission signals and the estimates of the useful propagation channels and on the basis of the measurements of the signals and estimates of the jamming propagation channels, jamming setpoint values, the jamming signals, the recurrence of the transmissions, the carrier frequencies of the transmissions, the leads/lags in transmission compared to a synchronisation reference, the equivalent radiated powers, the amplitude and phase weightings on the transmitting antenna arrays and on the jamming antennae, guaranteeing effectiveness for the P zones to be jammed that correspond to the entities outside the network, whilst minimising the fratricide effects on the N reception platforms; • transmitting these setpoints to the J platforms equipped with a jamming antenna; • continuously using, on the basis of the first computed and applied setpoints, the measurements of the fratricide propagation channels originating from the receiving platforms, optimising the jamming of the zones to be jammed by iteration whilst maintaining fratricide jamming that is acceptable for the quality of the useful transmissions. • measuring the useful transmission signals received by all the N reception platforms, estimating, on the basis of these measurements, the M*N useful propagation channels and transmitting these measurements and estimates to the master station managing the platforms equipped with jamming antennae; • measuring all the jamming signals received by the N reception platforms, estimating, on the basis of these measurements, the J*N fratricide propagation channels and transmitting these measurements and estimates to said master station; • computing, in the master station and on the basis of the measurements of the transmission signals and the estimates of the useful propagation channels and on the basis of the measurements of the signals and estimates of the jamming propagation channels, jamming setpoint values, the jamming signals, the recurrence of the transmissions, the carrier frequencies of the transmissions, the leads/lags in transmission compared to a synchronisation reference, the equivalent radiated powers, the amplitude and phase weightings on the transmitting antenna arrays and on the jamming antennae, guaranteeing effectiveness for the P zones to be jammed that correspond to the entities outside the network, whilst minimising the fratricide effects on the N reception platforms; • transmitting these setpoints to the J platforms equipped with a jamming antenna; • continuously using, on the basis of the first computed and applied setpoints, the measurements of the fratricide propagation channels originating from the receiving platforms, optimising the jamming of the zones to be jammed by iteration whilst maintaining fratricide jamming that is acceptable for the quality of the useful transmissions.