So does this mean the Ukrainian conflict is actually a proxy war?

via Kyiv Post

The U.S. Embassy in Ukraine has presented the Ukrainian Border Guard Service with a prototype of the Ukrainian-made 'Kozak' armored personnel carrier (APC), at a base in Kyiv
"To date, the United States has delivered dozens of armored pick-up trucks and vans to the Ukrainian Border Guard Service. The 'Kozak' is larger and offers a higher level of protection. Delivery of the prototype helps fulfill one of the commitments noted in the June 4, 2014 White House Fact Sheet on U.S. Security Assistance to Ukraine," reads a statement posted on the embassy's website on Tuesday.
The "Kozak" is the first prototype of its kind designed by "Practika" Kyiv enterprise. Meeting Ukrainian Class 4 armor standards, the vehicle is built on an IVECO chassis and includes a v-shaped armored hull to guard against anti-personnel mines or other explosives.
"The prototype is analogous to a light version of a U.S. Mine-Resistant Ambush Protected (MRAP) vehicle," reads the statement.

So we're buying the Ukrainians armored vehicles and since we're sourcing them from Ukrainian industry we're propping up that country.

Russian is supplying the rebels, separatists or whatever you call them with arms and munitions.

Isn't this the classic definition of a proxy war?  Have I missed the fact that the West is at war with Russia? 

UPDATE:  Ukrainian President says that Russia has 500 tanks, APCs, IFVs and other armored vehicles inside his country....read it here.