A landmine-neutralization system comprising: a vehicle including a water supply tank and an electrical power supply; an electro-discharge apparatus supported by the vehicle, the electro-discharge apparatus comprising: one or more electro-discharge nozzles, each nozzle having a discharge chamber that has an inlet for receiving water from the water supply tank and an outlet; a first electrode (2b.1) extending into the discharge chamber and being electrically connected to one or more high-voltage capacitors that are connected to, and chargeable by, the electrical power supply; a second electrode (2b.2) proximate to the first electrode (2b.1) to define a gap between the first and second electrodes (2b.1, 2b.2); and a switch to cause the one or more capacitors to discharge across the gap between the electrodes (2b1., 2b.2) to create a plasma bubble which expands to form a shockwave that escapes through an exit orifice of the discharge chamber ahead of the plasma bubble to thereby neutralize a landmine, wherein the vehicle comprises a retractable mine-detecting sensor retractable within the apparatus and extendable on an actuator and wherein the vehicle comprises a blast door configured to open and close to enable the sensor to extend and retract, whereby the blast door protects the sensor. a vehicle including a water supply tank and an electrical power supply; an electro-discharge apparatus supported by the vehicle, the electro-discharge apparatus comprising: one or more electro-discharge nozzles, each nozzle having a discharge chamber that has an inlet for receiving water from the water supply tank and an outlet; a first electrode (2b.1) extending into the discharge chamber and being electrically connected to one or more high-voltage capacitors that are connected to, and chargeable by, the electrical power supply; a second electrode (2b.2) proximate to the first electrode (2b.1) to define a gap between the first and second electrodes (2b.1, 2b.2); and a switch to cause the one or more capacitors to discharge across the gap between the electrodes (2b1., 2b.2) to create a plasma bubble which expands to form a shockwave that escapes through an exit orifice of the discharge chamber ahead of the plasma bubble to thereby neutralize a landmine, wherein the vehicle comprises a retractable mine-detecting sensor retractable within the apparatus and extendable on an actuator and wherein the vehicle comprises a blast door configured to open and close to enable the sensor to extend and retract, whereby the blast door protects the sensor. one or more electro-discharge nozzles, each nozzle having a discharge chamber that has an inlet for receiving water from the water supply tank and an outlet; a first electrode (2b.1) extending into the discharge chamber and being electrically connected to one or more high-voltage capacitors that are connected to, and chargeable by, the electrical power supply; a second electrode (2b.2) proximate to the first electrode (2b.1) to define a gap between the first and second electrodes (2b.1, 2b.2); and a switch to cause the one or more capacitors to discharge across the gap between the electrodes (2b1., 2b.2) to create a plasma bubble which expands to form a shockwave that escapes through an exit orifice of the discharge chamber ahead of the plasma bubble to thereby neutralize a landmine, wherein the vehicle comprises a retractable mine-detecting sensor retractable within the apparatus and extendable on an actuator and wherein the vehicle comprises a blast door configured to open and close to enable the sensor to extend and retract, whereby the blast door protects the sensor.