The Guardian | Simon Tisdall: Turkey�s Syria invasion following US withdrawal of its troops means that all bets are now off in the Middle East

By invading northern Syria last week, Recep Tayyip Erdo?an achieved what many thought impossible � uniting all the regional countries and rival powers with a stake in the country in furious opposition to what they see as a reckless, destabilising move.

A truculent nationalist-populist with dictatorial tendencies, Erdo?an has often cast himself as one man against the world during 16 consecutive years as Turkey�s prime minister and president. Now he really is on his own.

Fighting along the border is limited, so far, but that could quickly change. �Should hostilities intensify, a broader Turkish advance into densely populated areas could entail significant civilian casualties, displace many inhabitants and fuel local insurgency,� the International Crisis Group warned.

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