the defense minister
Depends upon which nation you're talking about- in Australia this may well be the case, but in the UK it's the Chancellor of the Exchequer. After the Chancellor it's the Deputy Prime Minister, and then the Home Secretary.
The prime minister.
No.
The prime minister is a very important person.
Robert menzies
In India the role of the elected office of Prime Minister is the single most important office in that nation. The Prime Minister is the head of State in India and has executive type duties and responsibilities.
Winston Churchill (the most important)
She was the fourth Prime Minister of Israel, and the third female Prime Minister in the world.
the prime minister or president
Sometimes it is important to contact the Prime Ministers of countries. The email for the Prime Minister of Greece is mail@primeminister.gr.
Pretty sure he is quite important
the prime minister
He is the UK Prime Minister.