Inter-American Highway

However, the aerial mapping effort was not directly tied to the upcoming Inter-American Highway project and was conducted with the cooperation of several of the Central American republics.

As part of the American war effort, the United States Army Corps of Engineers began the construction of a "Military Road" in conjunction with the IAH.

This group of engineers was allowed access to all the Central American nations involved in the original highway project due to the war emergency status of the Military Road.

For example, after the German submarine threat subsided - due to the presence of the United States Navy - the Corps of Engineers ceased construction on the Military Road project, suddenly leaving many people unemployed and upset.

After the American engineers left Central America, IAH construction started back up at full steam, having inherited a significant amount of supplies and equipment from the abandoned military project.