Copyrighted Material Mastanduno and l<apstein 9 From th is. Vlaltz derive. the hypoth eses th t 1 state will baJance again t a prepond erant pm er. (2 ba]an es of pm r will inevita bly fonn and recur, and .., ) bipola r or tw -po\ er sy tern \vi1l be le ··wa r-prone and more t ble than m ltipola r ones.1 Waltz ' · contribution has been extraordi na ri l 1 in fluen tial. hapi ng th e r al i t r search agenda for almo t two d cad and in piring cholarship and deba te on an arra , of fu ndam en tal i. ue incl udi ng the tabil ity of in tcrna­ ti nal system . th cau e of alliance , and the natu re of in t rnational theory itself. i the case for any ma jo r ocial cience con tnbu tion. th e theory has also attracted con siderable critici m. 01 e ault the theory for po iting an over1. na rr w co11ception of int rnational tructu re and for bei ng inca p ble of e ·pla ining the all-· porta nt problem of interna tiona l S) ·tem change.19 Other poi nt ou t that \ altz pr0\1de l i ttle y tcma tic evid nee for his central cJajm of th r u rrenc of bal an ci ng, a nd r ) jes i n.t ad on . elected i]l ustTa ­ tion that tend t con firm hi e 'pectati ons.:!0 Paul S hroeder' recent u rve.. of Eu ropea n diploma tic h i tory, for exam pl e, ca t doubt on th e em pi r ical \ alidity of Waltz's claim .:!1 Given the centrality of \ altz' argu ment, and the obviou t mpta tion o testi ng it in the setti ng f a u n ipo1 r ;t m, irtuall a11 of th e chapters do o again t th av ilable evidenc con pi l d sin e the end of the Cold \Var. e re ult i a trong ons nsu tha t neorealist balanc -of-pm er theory does not pro ide an effective explanatio either fi r th behavior o pa rti u1a r stat s or for their in teraction s regionally or global1 For example , John ton' chapter nd no evidence that China i de\ eloping [4 re , to balan e the n ited ta te , or tha t it is eking to coordinate its diplomac: \ ith possible U. . adver a ri e in the ame way that it . ought coord ina tion again t the SoV1et n ion during th 197 an 19 o . Rather than reduc ing its eco­ no1 ic dcp dence on the n1ted ta te hin a is in rea ing i t. a d Chinese behavi r in ia has ha rd ly prom pted other ta te to weaken their security ties to th e nited ta tes. iv1ac arla nargues that the most developed pa rts of Rus ian ooperation wi th the We t lie ·n th e real m of curity, n twith­ standing th provocati e pro pect of TO expa n ion. Rath er than pur uc bala ncing agai n t the nited tat s Russia 's I ader ha emphasized a ' stra­ tegic pa rtner h ip'' wi th America in wh ich Ru sia i de facto the u bord inate pa rtner. Ru . sia ha e ·en sough t a i tanc.:e from the U n i ted tate. in d i ma n tl ing its nuclear \ apon -hard) · the stuff of balance-of-power th eory. Io their chapter, Heginbotham and amu 1 argue that J apan has e barked on a 1ong-term path of down izing its m i li ta ry fore , even 1ough I 1 •