In the book "Grunt: The Curious Science of Humans at War," author Mary Roach explores the unique and often surprising aspects of military life and the science behind it. One of the notable anecdotes describes a scenario where seawater violently breaches a submarine through a small hole, illustrating the immense pressure and peril that submariners face underwater. This vivid imagery captures the extreme conditions of warfare in maritime environments.

Roach's work delves into the human experience of war, highlighting how science helps to understand and mitigate the challenges faced by soldiers. The striking quote serves as a metaphor for the broader struggles of military personnel, showcasing the harsh realities they endure. Through her engaging narrative, Roach sheds light on the interplay between human resilience and the scientific advancements aimed at improving survival in combat situations.