Countries with the Shortest Tallest Buildings

Try to name the countries that have the greatest number of active military troops.

Which countries have a tallest building that is higher, base to peak, than the elevation of its highest mountain?

Start by naming any country that France borders. Then name any country that borders any of those countries. Then keep going until there are no more countries left to name.

Among these first names, click the ones where the average person in the U.S. with that name is at least 50 years old.