A naval mine configured to be released by a release assembly comprising: an impermeable casing; an explosive charge arranged inside the impermeable casing; a detonator which can be operated to trigger the explosive charge; and a control device configured to operate the detonator. The naval mine further comprises a fillable chamber, provided with at least one opening and a closing system for closing or opening the opening; said closing system is configured to open the opening so as to allow water to flow into the fillable chamber, when the naval mine is released by the release assembly.

A naval mine configured to be released by a release assembly comprising: an impermeable casing; an explosive charge arranged inside the impermeable casing; a detonator which can be operated to trigger the explosive charge; and a control device configured to operate the detonator. The naval mine further comprises a fillable chamber, provided with at least one opening and a closing system for closing or opening the opening; said closing system is configured to open the opening so as to allow water to flow into the fillable chamber, when the naval mine is released by the release assembly.

According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload transmits a signal.

According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air over a body of water. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload is adapted to enter the water; and the payload transmits a signal after entering the water.

According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload transmits a signal.

According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air over a body of water. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload is adapted to enter the water; and the payload transmits a signal after entering the water.