There were no American naval ships lost during the Vietnam War.
ther are tenships
Yes there were civilian passenger ships that traveled across the Atlantic Ocean during World War 2. Unfortunately during this time there were many civilian passenger ships that never reached their destinations due to disaster striking during their sail.
Primarily over 2,000 merchant vessels, with a sprinkling of allied warships.
Japan lost four aircraft carriers, the USN, One, The Yorktown as I recall. It was the first major Naval battle fought entirely in the air!