had his own reasons: if you have
your own reasons for doing something you have specific circumstances
which make you do it
collective weakness: not having,
together, much power
assertive: someone who is assertive
acts in a forceful way
the political heir: someone who
works or thinks in the same way as a former leader
captured Arab hearts: gained the
full support of Arab people
heady days: here, a time when there
is enthusiasm and optimism for a cause
long gone: past, finished
pursuing its own self-interest:
only interested in its own goals and ambitions
based more on hope than realism:
here, unlikely to happen
uncomfortably isolated: its traditional
friends and supporters have left it