Answer:
Fou ght i n Spot sylvania Co unty, Vir ginia, Le e 's da ring deci sion t o fac e a for ce twic e hi s si ze—Un ion Ge neral Jos eph Hoo ker's Ar my o f t he P otomac—b y splitti ng hi s ow n arm y i n tw o ma de th e B attle of Chanc ellorsville g o own in his.tory a s Le e's mo st sign ificant tactic al vi ctory.