Maybe this should go in Writers' Block, but I'm sure this forum gets way more traffic.
Anyway, I just recently finished reading Alistair MacLean's
HMS Ulysses and thoroughly enjoyed it. (I thought it was markedly superior to his later and better-known book
The Guns of Navarone, but I haven't read any of his other work yet.) However, reading it reminded me of another, somewhat similar World War II novel I read years ago (probably at least a decade ago, but I'm sure the book itself is much older than that).
The protagonist was an American naval officer in command of an old WW1-era "four-stacker" destroyer on convoy escort duty in the Atlantic. The book is similar to
HMS Ulysses in that it just sort of follows the convoy's journey from beginning to end, with all the events in the book not elapsing more than a few days time and little or no background. There's clashes with U-Boats, some of the merchant ships and other escorts being sunk, etc. It ends very anti-climactically, as I recall with what's left of the convoy reaching its destination and the protagonist collapsing into his bunk in an exhausted sleep.
Unfortunately, the above is literally the sum total of what I remember about it. I realize it's a long shot, but are there any other fans of WW2/historical fiction here who might be able to hazard a guess what this book was?