After insulting the UN committee insinuating they were irrelavant, Bush no sooner had approval from Congress to use "force/war" if Hussein did not permit unfettered access for inspections - and the war ships were moved into place on the Gulf.
The ships were placed in the Gulf to prepare for war.
they were moved into place because Congress gave approval for force/war so it is correct  but the paraphrasing confused the AI
( z1 place :ARG1 ( z2 ship ) :ARG2 ( z3 gulf :name ( z4 name :op "Gulf" ) ) :purpose ( z5 prepare :ARG0 z2 :ARG2 ( z6 war ) ) )