bunker (sometimes called an igloo)
1Battle of Hat Dich — Part of the Vietnam War …
2Battle of Dak To — Part of the Vietnam War A U.S. soldier calls f …
3Earthbag construction — is a very inexpensive method of construction that is very strong and can be built very quickly. It is a natural building technique that has evolved from historic military bunker construction techniques, and temporary flood control dike building… …
