Europe needs its own plan for Ukraine and for its own security or its future will be decided by other powers, Polish Prime Minister Donald Tusk said on Saturday.

Increasingly alarmed that U.S. security priorities lie elsewhere, a group of European countries has been quietly working on a plan to send troops into Ukraine to help enforce any future peace

The idea of guaranteeing Ukraine's security with troops provided by European countries is widely discussed. Ukrainians are evaluating whether Europe can deploy 100,000 soldiers and how such a number would impact border security.