1941年，河北平山县民兵在埋设地雷配合主力作战。抗日战争进入相持阶段后，地雷战是在反扫荡斗争中产生的防御性作战方式。（石少华摄）

    Militias lay mines in Pingshan County in Hebei Province in 1941. Mine warfare was produced in the struggle against anti-defensive combat mode after the War entering a stalemate.（Photo by Shi Shaohua）