The US army has not had a chief of staff, the service’s top officer, since April and that’s just one of the many senior positions vacant at a time when the military is busier than ever.

The extent to which Trump’s “Secretary of War” has damaged the United States’ military capability is even worse than previously thought.

The US army has not had a chief of staff, the service’s top officer, since April and that’s just one of the many senior positions vacant at a time when the military is busier than…