The possibility of Ukraine's army collapsing cannot be ruled out, an unnamed US official told Bloomberg. The report said, citing talks with multiple officials, that Ukraine's position on the battlefield is at its most fragile moment since Russia's full-scale invasion began in February 2022. Ukraine's war effort has been weakened in recent months by a severe shortage of ammunition, dipping morale among Ukrainian soldiers, and the impasse in Congress over US aid to Ukraine, Bloomberg reported. One major risk is a collapse of Ukraine's line of defense, which would allow Russia to make a major advance, Bloomberg said, citing an...