Thanassis Cambanis writes: As the last rebel neighborhoods in Aleppo fell this week, Samantha Power, America’s ambassador to the United Nations, excoriated Russia, Syria, and Iran for authoring what will prove to be the signal atrocity of our time.

“Are you truly incapable of shame?” Power asked. “Is there no act of barbarism against civilians, no execution of a child that gets under your skin?”

Hundreds of thousands chose to stay in what they proudly called “Free Aleppo,” eschewing safe routes when they still existed and vowing to preserve their alternative to Syrian President Bashar Assad even if it meant death.

This week, that horrific choice materialized. Assad’s regime destroyed rebel Aleppo step by step, using Russian airpower; legions of militiamen from Afghanistan, Iraq, Yemen and Lebanon; and the barrel bomb, another of the war’s sad innovations. Syrian rebels in Aleppo had warned for a year and a half that a siege was inevitable unless their backers, including the United States, provided them at least with air support and a steady supply of bullets and cash.

Western officials decried the unfolding tragedy in Aleppo, but their actions guaranteed this week’s genocidal denouement. The United States withheld basic support to vetted rebels. Turkey diverted its proxies to deal with the Kurdish problem on the border. And the West continued to negotiate after Russia engaged in blatant subterfuge and spectacular war crimes, emboldening the scorched earth campaign in Aleppo.

Ambassador Power is right to ask about shame. Ultimately, a great share of it will belong to her government and the other fair-weather “friends of Syria” who supported the country’s revolution only half-heartedly — enough to prolong it while also sealing its failure. [Continue reading…]