▁the ▁B W C ▁contains ▁no ▁prov isions ▁for ▁monitoring ▁or ▁enfor cement . ▁The ▁treat y , ▁essentially , ▁is ▁a ▁gentlemen ' s ▁agreement ▁amongst ▁members ▁back ed ▁by ▁the ▁long - prev ail ing ▁thought ▁that ▁bi ological ▁war fare ▁should ▁not ▁be ▁used ▁in ▁battle . ▁ ▁After ▁N ixon ▁declared ▁an ▁end ▁to ▁the ▁U . S . ▁bio - we ap ons ▁program , ▁debate ▁in ▁the ▁Army ▁centered ▁around ▁whether ▁or ▁not ▁to x in ▁weapons ▁were ▁included ▁in ▁the ▁president ' s ▁declaration . ▁Following ▁N ixon ' s ▁November ▁ 1 9 6 9 ▁order , ▁scient ists ▁at ▁Fort ▁Det rick ▁worked ▁on ▁one ▁to x in , ▁St ap hy loc oc cus ▁enter ot ox in ▁type ▁B ▁( SE B ), ▁for ▁several ▁more ▁months . ▁N ixon ▁ended ▁the ▁debate ▁when ▁he ▁added ▁to x ins ▁to ▁the ▁bio - we ap ons ▁ban ▁in ▁February ▁ 1 9 7 0 . ▁The ▁U . S . ▁also ▁ran ▁a ▁series ▁of ▁experiments ▁with ▁anth ra x , ▁code ▁named ▁Project ▁Bac chus , ▁Project ▁Clear ▁V ision ▁and ▁Project ▁Jefferson ▁in ▁the ▁late ▁ 1 9 9 0 s ▁and ▁early ▁ 2 0 0 0 s . ▁ ▁In ▁recent ▁years ▁certain ▁critics ▁have ▁claimed ▁the ▁U . S . ▁st ance ▁on ▁bi ological ▁war fare ▁and ▁the ▁use ▁of ▁bi ological ▁agents ▁has ▁differ ed ▁from ▁historical ▁interpret ations ▁of ▁the ▁B W C .