Amid significant rebel advances and indications that a partition of Syria might happen in the next months, the government army reportedly readied chemical weapons for use last week. The United States and the North Atlantic Treaty Organization (NATO) alliance responded with harsh warnings and by approving the move of multiple Patriot missile batteries to southern Turkey, something that could further tip the balance in the country. The Syrian civil war seems to have entered a critical phase, with President Bashar al-Assad facing the choice of either stepping down or fighting to the end, by all means available.
To be fair, there are no specific indications that the Syrian government intends to use weapons of mass destruction against its own citizens, and its spokespeople vehemently denied on Monday any such possibility. These weapons could play different roles in several scenarios, including as a bargaining chip for Assad on his way out of the country, a deterrent against foreign intervention, or a way to cover his potential withdrawal to a rump state centered around territories inhabited by his Alawite sect.
Some reports claim that Assad is exploring the possibility of seeking political asylum in Latin American countries such as Cuba, Venezuela or Ecuador. Though the Syrian president has denied any such intention and has vowed to "live and die in Syria", his recent military and diplomatic fortunes have turned more toward dying, and he could be expected to reconsider.
The threat of chemical weapons, on the other hand, could win him a measure of immunity and an offer of more favorable conditions for an exit (of course, only as long as he doesn't use them).