[Mariner]

How could the author neglect to mention Chosin Reservoir and the resulting Yalu River march?

Or the Hadong Massacre? My father was at Hadong precisely 7 days before his 18th birthday. He talked of crossing “the river of blood” upon retreat.

https://en.wikipedia.org/wiki/Hadong_Ambush

[artichokegrower]

True. Could have also included Wake Island.

[colorado tanker]

Left Pearl Harbor off the list too.

Savo Island was a bad defeat, but the Japanese withdrew, forfeiting an opportunity to destroy American transports supplying the new landings at Guadalcanal.

Tassafaronga was another defeat, but again the Japanese withdrew without unloading supplies badly needed by their starving army on Guadalcanal.

As to the Civil War battles, it depends on which Americans you're cheering for as to whether it was a victory or defeat. Several other battles had a much bigger effect on the outcome of the War.