Gravel mines were extraordinarily simple devices dropped out of planes by the millions, mostly along the border of the demilitarized zone as part of a plan to prevent North Vietnamese entry to the South. The mines had no trigger mechanism, no primer, the charge itself acts as a detonator. read more
XM41E1 Gravel mine, USA, Vietnam era Opened XM41E1 gravel mine. This mine was extensively used as a part of the McNamara line and as a fast deployable area deniel system in the Vietnam war. read more