By the end of the first day the 5th Army , although it had not gained all its objectives , had made a promising start : X Corps ' two assault divisions had pushed between 5 and 7 mi ( 8.0 and 11.3 km ) inland and the special forces had advanced north across the Sorrento Peninsula and were looking down on the Plain of Naples .
X Corps ' two divisions had moved between 5 and 7 mi ( 8.0 and 11.3 km ) inland .