The Pioneer Infantry Regiments are usually mentioned in passing, or in the footnotes of history. The Pioneer Infantry were similar to regular army troops in that they were trained in infantry tactics, but they were also trained in combat engineering. This book contains material common to all the Pioneer Infantry Regiments. For each Pioneer Infantry Regiment, there are origins, important dates, and training locations. Sailing dates and ship names are given for those regiments that served overseas. Battle participation is included for those regiments that saw combat. When available, other material about each regiment has been included. Additional sources are listed for each regiment, as is material relevant to all of the regiments. "They did everything the Infantry was too proud to do, and the Engineers too lazy to do."