Complex sentence: Secret United States diplomatic cables released by Wikileaks show that Indian officials systematically refused to entertain requests from US diplomats for their armed forces personnel, on official military visits or "R&R" shore-leave, to avail of immunity from prosecution for crimes committed in India.
Split into simpler sentences: Secret United States diplomatic cables released by Wikileaks show that Indian officials systematically refused to entertain immunity requests from US diplomats for their armed forces personnel. US military personnel on official visits, training exercises and "R&R" shore-leave are not immune from prosecution for crimes committed in India.