His plays have typically been dog-eat-dog affairs; it makes sense that he views politics as trench warfare.
There was a lot of trench warfare between the Princesses Margaret and Michael, too.
Early airpower theorists were not only repelled by trench warfare.
a type of combat in which the enemies fight from a system trenches
Warfare marked by slow wearing down of the opposing forces and piecemeal gains at heavy cost. The term applies especially to World War I.