Verbs for Trenches

plan—; raid—; repulse from—; scoop out—; straggle to—; stream to—; swarm from—; tunnel—; —afford; — deface; —furrow; —shelter; beseige—; blast—; bolster—; bombard—; burrow—; confine to—; excavate—; fortify —; flow from—; lodge in—; maintain—; map—; patrol—; —shield.