Ukraine launched two offensives. The one in the south failed.  Ukraine suffered heavy casualties in soldiers and equipment.  The one in the north succeeded in forcing a Russian pullback, but at heavy cost to Ukraine's forces, not to Russia's.  

A month from now 300,000 Russian soldiers called up by the Kremlin will be deploying.  If these soldiers are well trained and equipped and motivated, Ukraine's forces, ground down in unsuccessful offenses, are likely to be overwhelmed even if Putin continues his Goody Two Shoes behavior of doing little to prevent Kiev's ability to conduct war.

Faced with Ukraine's defeat, what will Washington do?  

Will Washington have organized a "coalition of the willing," as General David Petraeus suggests, and bring boots on the ground to Ukraine's rescue?