In Paradise Lost/Homefront, with the threat of Dominion invasion of Earth, where was the planet's leader? It was the Federation President that took point on the matter, which is understandable in many ways seeing as how the UFP is based from Earth, it would be heavily involved in defending the planet, but surely Earth's leader would be the one calling the shots?
The Federation and Earth are two separate things, the leader of the former isn't the defacto leader of the latter.
Commander Austin Harris, First Officer, Deep Space Nine (by FltCpt. Bossco)
8.01 - Darkest Before Dawn
(Chapter 8 added, 12/09/2015)