Before revision: Depending upon international relations with the neighboring country and local strategic needs, BOPs are sometimes built with an assortment of a few administration and residential buildings or tents, an armory, trenches , bunkers, wire obstacles and fortified machine gun positions with a watchtower .
After revision: Depending upon international relations with the neighboring country and local strategic needs, BOPs are sometimes built with an assortment of a few administration and residential buildings or tents, an armory, trench , bunkers, wire obstacles , fortified machine gun posts and watchtowers .