Many Q drops mention other countries using two letters. Some of them mention "SA". Many of us have interpreted this as "Saudi Arabia".
Could it mean "South Africa"?
South Africa has a major geographical advantage with regards to container ship travel from the Indian Ocean into the Atlantic.
Especially if Suez Canal were to be inopperable.
Evergreen was trial run for how to efficiently re-route nautical shipping traffic?
thinking that most of Q is comprised of military, I would assume that they would be using the appropriate country abbreviations. To me, SA is always Saudi Arabia, and and South Africa will always be ZA.