Military recruitment is the war machine's most apparent vulnerability because our youth, to their infinite credit, are not enlisting in anticipated numbers. This in spite of the huge efforts made to lure kids into enlistment. Recruiters stake out high schools, working class-oriented colleges, and youth events, employing all the techniques of aggressive salesmanship.
Suppose that military-aged people contacted military recruiters, feigned interest, and wasted the recruiter's time. If enough people do that, would it not waste a significant number of recruiter man-hours and place additional strain on the war machine at its most vulnerable point?