Original: Later that year, he embarked for Europe aboard the RMS Carpathia, which was being used as a troop ship. While on board Carpathia, Buckles spoke with crew members who had taken part in the rescue of RMS Titanic survivors five years previously.
Simplified: In 1917, Buckles was sent to Europe on the RMS Carpathia, which had rescued RMS Titanic survivors five years earlier.