Depends on who pushes the button on the Nukes, but without those I'd have to say Britain..
Side note: There are no winners in a war.
Britain.
depends
The relations between Great Britain and their former colonies would be deterred.
Israel invaded Egypt along with Britain and France.
Russia
The relations between Great Britain and their former colonies would be deterred.
On one to one basis Turkey would win, unless atomic weapons were used then Israel would win.
which rulers would lead European countries.
Egypt, Great Britain, Israel, and France.
Britain.
There is currently no war in progress involving Israel and the inhabitants of Gaza.
That would be the country of Greece, which had long been considered a protectorate of Great Britain.