Land mines, along with cluster bombs and poisoned gas, are some of the most noxious weapons. That's why Polisario deserves to be commended for destroying 2,000 mines in its stockpile last month.
According to the Polisario spokesman in that press release, Morocco has been less enthusiastic about destroying their own mines. I think Morocco has more of a use for land mines than Polisario, primarily because in the last war Morocco played a more defensive role. All the pragmatic excuses on either side, though, won't be enough the next time a civilian steps on one of the mines. Morocco and Polisario need to continue demining with MINURSO's help.