Russia is bringing into the fray Syrian military, Russia says!

As advisers or troops on the ground, these fresh recruits are entering Ukrainian space.  

Why cannot Ukrainians benefit from, say, a Turkish military adjunct contingent to assist the Ukrainian military forces?  Especially, if the Pentagon is right, the war is to become protracted, largely due to the length of time it takes for sanctions to be effectively applied.

I think consensus is worldwide, Ukrainian forces have proven their mettle.  It has yet to be convincing that they must go it alone under protracted conditions.  Also, has the newly organized Brit Expeditionary Force been given its tactical mission?  Perhaps, it might prove useful, too.

Democracy has many nations Ukraine can rely upon for supporting intervention and relief.

My opinion.