US military forces are evacuating U.S. citizens and citizens of 72 other countries from Liberia at the request of the U.S.
the united states are evacuating only united states citizens
( z1 evacuate :ARG0 ( z2 country :name ( z3 name :op "United" :op "States" ) ) :ARG2 ( z4 citizen :mod z2 :mod ( z5 only ) ) )