Musa was a devout Muslim, and his pilgrimage to Mecca made him well known across northern Africa and the Middle East. To Musa, Islam was "an entry into the cultured world of the Eastern Mediterranean". He would spend much time fostering the growth of the religion within his empire.
The Washington advice was that the country should try to avoid the permanent alliance with the foreign nations as during the times of the extreme dangers may be necessary. And asserted that the current treaties should be honored but not extended.
