7/ It gets complicated.
In 1958 Jordan and Iraq
formed the Arab Federation
https://en.wikipedia.org/wiki/Arab_Federation
Then from 1972-1977 Egypt , Libya
, and Syria
were the Federation of Arab Republics
https://en.wikipedia.org/wiki/Federation_of_Arab_Republics
in 1974 the Arab Islamic Republic, a merger between Libya and Tunisia
(with plans to later add Morocco
and Algeria
) was also proposed
https://en.wikipedia.org/wiki/Arab_Islamic_Republic