According to Censor.NET citing the official website of the Department, its representative Jen Psaki stated: "We are deeply concerned by Russia's plan to conduct a large military aviation exercise this week in areas bordering Ukraine. Exercises of this kind are provocative and only serve to escalate tensions. Russia has repeatedly called for a peaceful solution to the situation in Ukraine and must match its words with deeds by ceasing the flow of weapons, fighters, and money into Ukraine, and by moving its military forces away from the Ukrainian border."
Psaki also noted that in the opinion of the State Department "Russia may be preparing to transfer heavier multiple rocket launchers to the separatists. Those are the recent updates that we've really had in terms of our concerns about the transfer and supply of weapons and movement on the ground."