An  expeditionary  force  commanded  by  Tettius
Julian  us,  who  had  helped  to  repel  the  invasion  of
the  Roxolani  in  A.D.  69  (p.  99),  crossed  the  Danube,
skirted  the  base  of  the  Western  Carpathians,  and
forcing  its  way  up  the  valley  of  the  Temes  with
better  success  than  Fuscus,  threatened  the  Dacian
capital.
Unfortunately  Domitian,  burning  to   achieve   the


r/ioio]


\_R,  Moscioni,


DOMITIAN.
(  Vatican.^


142  THE   FLAVIAN   DYNASTY

triumph  of  which  the  speedy  suppression  of  Satur-
ninus'  revolt  had  baulked  him,i  picked  a  quarrel  with
the  Marcomanni  and  Quadi  on  the  ground  that  they
had  refused  their  aid  against  the  Dacians,  treacher-
ously slew  their  envoys,  and  invaded  their  territory.
He  was  signally  defeated  and  put  to  flight,  and  in
his  alarm  made  peace  with  Decebalus,  who  gave  up
the  army  and  prisoners  which  he  had  taken  and
consented  to  recognise  the  suzerainty  of  Rome,
sending  his  brother  Diegis  to  receive  the  diadem
from  Domitian,  but  received  in  return  a  considerable
subsidy  as  the  price  of  his  alliance,  and  what  was
of  still  greater  value  in  his  far-seeing  eyes,  the  ser-
vices of  Roman  military  engineers  and  artillerists.
