assignment #9(a)

Dr.Sasaki, who beleived that the ememy had hit only the building he was in, got balandages and began to blind the wounds of those inside the hospital; while outside, all over Hiroshima, mained and dying citizens turned their unsteady steps toward the Red Cross Hospital to begin an invasion that was to make Dr. Sasaki forget his private nightmare for a long, long time.(p15)

This is a complex sentence. How do you think?