This support was an integral part of what was called the “Truman Doctrine” formulated by State Department official George Kennan.

In a bitter irony, following the defeat of Nazi Germany, the Truman administration instructed US intelligence at the height of the Cold War to ensure the continuation of Nazi Germany’s support to Ukraine’s OUN “Nachtingall battalion”, reshaped and transformed into a subversive guerrilla group under an Anglo-American acronym.