They are helped, too, by police undermanning.

警力不足也给他们帮了忙。

youdao

The readiness of the residual U.S. forces is "suffering" as a result of reduced training, undermanning, excessive deployments and declining morale.

CENTERFORSECURITYPOLICY: "THE U.S. CAN NO LONGER AFFORD RECKLESS 'PEACE DIVIDENDS'"

The report said there must be improvement on a situation where the problems of undermanning and overstretch appeared to have got worse since the defence review.

BBC: Defence cash shortfall fear