To Hear Silence is the history of Charlie Battery, 1st Battalion, 13th Marines, from the time of its formation at Camp Horno, California, in July 1966, until the original members left Vietnam in early October 1967. Although partly written in narrative format, this book paints an accurate portrayal of the experiences of what really happened in 1966 and 1967 through its day-to-day, and often minute-to-minute, accounts of the members' time in Vietnam. This book is based on a diary kept by the author while in Vietnam, the actual declassified documents kept by the Marine Corps, and the memories of those who lived through it.