peacekeeping and nation building effort success is in large part a matter o' will.  the wh, pre-iraq, were getting estimates that 500,000 troops would be needed to maintain peace in iraq for the first years following successful liberation. 500k.  US knew how costly it would be in terms o' manpower and dollars to rebuild iraq. japan saw 350k us troops. germany, a bit misleading, had  a peak 1.6 million us troops in country.  history suggests twenty troops per thousand population is thr