A counting fuze for a land mine having a detonator, comprising: an electrical source unit providing an output only when subjected to pressure; a charge storage means, said storage means receiving a charge in pulse form from said electrical source unit upon each subjection of said source unit to pressure; and electronic gating means, said gating means connected intermediately between said storage means and said detonator, whereby said detonator will be activated after successive applications of pressure to said electrical source unit.