Abstract: The invention relates to the area of armor and in particular to multilayer armor having a composite layer containing a first material made of a metal or an alloy and a second material where the second material is porous and in that the metal or metal alloy is infiltrated into some or all of the pores of the second material and characterized in that a cage made of plates having openings contains the first and second materials and in that the cage is itself coated, at least partly, with the infiltration metal or alloy, the melting point of the cage material being higher than that of the infiltration metal or alloy.