那次军事演习中，三名士兵因友军火力而不幸丧生。

Three soldiers were accidentally killed by ___friendly-fire during that military exercise.

公司内部两个部门同时推出类似产品，结果互相影响了销量，这真是典型的友军误伤。

Two departments launched similar products simultaneously, causing ___friendly fire that hurt each other's sales.