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Rule the Waves: War of the Submarine: Book 6

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Captain Alex Coleman never asked to be a legend.But now the choices just get harder. Hold fire...or risk civilians to kill a war criminal no one else can stop?

Captain Alex Coleman is at the top of his game. Fresh off defeating the “best submarine captain in the world,” he’s well-nigh unbeatable...or so everyone says. But World War III remains a desperate conflict, and the United States and her allies have their backs against the wall. Alliance submarines and their crews continue to disappear at an alarming rate, so it’s up to Alex and the crew of USS Bluefish to pull impossible mission after impossible mission off yet again.

This time, it won’t be easy. No one’s going to underestimate Alex ever again. Even worse, he finds himself—an introvert with the habit of saying just the wrong thing when a camera is around—saddled with the submarine navy’s first embedded reporter. Facing a rival in the form of his own former captain, who hates the very ground Alex stands on, as well as enemy submariners burning to make their reputation out of bringing him down, Alex must figure out how to keep pulling off the miracles that his country needs to keep them in the fight. But as missile shortages cripple the surface fleet, the pressure just keeps ratcheting up...

And when a new threat rises in the form of his old French enemy Camille Dubois—the same woman who chased him off of Armistice Station in the opening moments of the war—Alex faces the hardest choice of his career. Does he risk civilian lives to take down France’s new superstar, or does he hold fire, leaving her to wreak havoc on Alliance submarines?

Rule the Waves continues the story of the submariners fighting World War III against mounting odds, including Alex Coleman and the crew of USS Bluefish in the series War of the Submarine.

454 pages, Kindle Edition

Published May 23, 2025

313 people are currently reading
9 people want to read

About the author

R.G. Roberts

10 books11 followers

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5 stars
150 (68%)
4 stars
57 (25%)
3 stars
10 (4%)
2 stars
2 (<1%)
1 star
1 (<1%)
Displaying 1 - 5 of 5 reviews
67 reviews
August 1, 2025
Another goodie from RG Roberts. I really wasn't looking forward to getting to the end of this one as there are no more in the series (Yet). All the usual main characters as well as plenty of new ones to keep the interest. If there was one criticism it was that there was too much recapping of previous stories although a certain amount is necessary for the new reader. All in all I would recommend the book it was very enjoyable.
1 review2 followers
August 2, 2025
Decreased rating due to proliferation of writing errors

I’ve enjoyed the stories in this series. The characters are fun to follow and I look forward to the inevitable “comeuppance” for several of them.
A main detractor which caused me to rank only 4 stars out of 5 is the extreme number of missed editing opportunities…wrong words used, clear grammatical errors, and context that didn’t make any sense.
I still look forward to the next book, however, which mitigates any concerns I have.
1 review
May 25, 2025
Keeps getting better

The characters weave in and out over the series, but are still easy to follow. I recognize several the Leaders (good and bad) from.my time in the service.
2 reviews
August 16, 2025
Another good read.

Lots of character content building in this book and preparation for the next. Not as much combat action in the previous volume.
10 reviews
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September 23, 2025
Best book of the series. Pretty much tied up loose ends but leaves it open for future books
Displaying 1 - 5 of 5 reviews

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