Pair of vintage Vietnam War era, United States Army ROTC (Reserve Officer Training Corps) manuals. There are: "Small Unit Tactics, Including Communications - ROTCM 145-60" (1964) and "Junior ROTC Manual Volume II - ROTCM 145-4-2" (1968). These army manuals are profusely illustrated with moving at night, radio equipment and more!
The Junior ROTC Manual has some spotting and mouse chewing to the cover.