Russia lies farthest to the east
Egypt. Egypt is the country which is the farthest east in North Africa.
Somalia is the farthest country east.
The farthest north country is Denmark (via Greenland). The farthest east country is Kiribati.
Yemen is the farthest-south country in the Middle East.
About 20 degrees east latitude to 40 degrees east latitude.
Brazil is the South American country that extends the farthest east.
Australia is the closest country to East Asia!
Any country that shares a border with a country considered to be in East Asia.
Denmark is the farthest east North American nation via Greenland. However, just including points on the continent, then Canada is farthest east.
Afghanistan
The North American country that extends farthest East is Canada. The state of Maine in the United States is the most eastern state.