The phrase "a collapse acknowledging that" is correct and usable in written English.
It can be used in contexts where you want to describe a situation or event that involves a failure or breakdown while also recognizing a particular fact or truth.
Example: "The report presented a collapse acknowledging that the previous strategies had failed to yield the desired results."
Alternatives: "a breakdown recognizing that" or "a failure admitting that".
But, in this case, it's worth acknowledging that Assad has a point: the significance of Aleppo's collapse is far greater than its physical territory, its ancient history, and its former splendor.
Though it's not likely that the dollar will completely collapse, economists acknowledge that a collapse could occur if overseas investors start dumping dollars from their portfolios, fearing a decline.
A long downward burrow is enlivened with a series of artificial narrative crises, each of which efficiently eliminates a crew-member, and halfway through there's another, spectacular sequence above ground thrown in, showing San Francisco's Golden Gate bridge collapsing - tacitly acknowledging that they're boring down there in every sense.
In 2005, five years after Yeltsin handed over power to him, Putin remarked, "First and foremost, it is worth acknowledging that the collapse of the Soviet Union was the biggest geopolitical catastrophe of the century.
And while acknowledging that the causes of global warming, crumbling infrastructure and a collapsing global economy are all connected, it brings these issues down to a manageable scale, one that the public can grasp.
But the reality, officials acknowledge in background conversations, is that the Chinese are not unhappy with the status quo, because the last thing they want is chaos on their border with North Korea, or a collapse of that government.
A collapse like that could recur.
Although many economists consider an all-out collapse of the dollar unlikely, they acknowledge that such a collapse could occur if overseas investors, fearing a relentless decline, start dumping dollars from their portfolios — accelerating exactly what they fear might happen.
On Thursday, NATO Secretary General Anders Fogh Rasmussen said Assad's government appears to be approaching collapse, and Russia acknowledged that Syrian rebels were making progress in their effort to oust Assad, a Moscow ally.
After taking office in 2001, the Bush administration expressed skepticism about the agreement, which collapsed after North Korea acknowledged that it had been pursuing a nuclear arms program in violation of the 1994 accord.
