micheal maxwell
Costa Rica's current ruler is Oscar Arias.
Great Britain was the colonial ruler of South Sudan.
In Case you didnt know, Guatemala is no longer a colony... thus there's no colonial ruler.
Spain
Pual Biya
France
spain
Nestor Kirchner became president of Argentina in 2003.
john wheelright
Mauricio Funes
The Netherlands, also known as Holland.
Using the ruler on Google.earth I got 5427 miles from the center of London to the center of San Jose, Costa Rica. The ruler takes the straightest path on a circle (the globe) and I am assuming that is the path the airlines would take.