Complex sentence: She was on standby alert during the Laotian crisis of late August and September, then exercised with British forces before sailing from Yokosuka on 16 November for San Diego, arriving on 2 December.
Split into simpler sentences: She was on standby alert during the Laotian crisis of late August and September. Following this she exercised with British naval forces before returning to San Diego, arriving on 2 December.