stone post at side of a road to show distances

The Isthmus of Kra is a narrow strip of land located in southern Thailand, near the Malaysian border, that connects the Malay Peninsula with mainland Asia. It is the shortest land route from the Indian Ocean to the South China Sea, making it an important strategic location for maritime trade routes.

project on a background, such as a screen, like a silhouette

In medicine, an acute disease is a disease with a rapid onset and/or a short course.
Acute may be used to distinguish a disease from a chronic form, such as acute leukemia and chronic leukemia, or to highlight the sudden onset of a disease, such as acute myocardial infarct. The word acute may also be used in the context of medicine to refer to the acute phase of injury, referring to the immediate post-injury healing processes.

A source of subsistence and supplies, typically containing items such as food, water, medical items, and/or communications equipment, packaged to prevent damage from exposure and hidden in isolated locations by such methods as burial, concealment, and/or submersion, to support isolated personnel. See also concealment; evader; evasion; recovery; recovery operations.