Some sources say Polisario fighters were present at Amgala .
Algeria had supplied an SA - 6 antiaircraft battery with trained Algerian operators so Polisario could fend off Moroccan aircraft that were using napalm bombs .
Some sources say Polisario fighters were present at Amgala , and Algeria had supplied an SA - 6 antiaircraft battery with trained Algerian operators so Polisario could fend off Moroccan aircraft that were using napalm bombs .