Supplement to mines by which the time period is limited within which the activation of mines after their placing is possible

A time-limited mine comprising:

• a mine body configured to contain an explosive and having a bore with an ampoule disposed therein, the ampoule containing a aggressive substance;
• and
• an activating assembly including an initializing part configured to contain an initiating explosive substance and adapted to be received by the bore, the initializing part having at least one surface formed of a material that may be corroded by the aggressive substance;
• wherein when the initializing part is received in the bore, the ampoule releases the aggressive substance so that the aggressive substance at least partially contacts the surface of the initializing part and the surface corrodes after a predetermined period of time, the initiating explosive substance therein mixing with the aggressive substance and neutralizing the initiating explosive substance thereby disabling the activating assembly and deactivating the mine.