The border between North America and South America is at some point on theIsthmus of Panama. The most common demarcation in atlases and other sources follows the Darién Mountains watershed divide along the Colombia-Panama border where the isthmus meets the South American continent.
The aim was to invade North Africa. This way they could take the axis powers by surprise. They attacked from the water. This is also called amphibious assault.
Your answer would be (2) elements
In WWII Belgium or France, in WWI Belgium