Uncle Sam standing on US ships in the Black Sea, looks through a spyglass on USSR with a sign “Provocation” on it. Uncle Sam was widely used to represent USA.
"I am a Peaceful Pigeon"
This poster shows the deceitful nature of the US as they promote peace and proclaim themselves to be peacemakers with an allusion to doves; however, it is a blood eagle masquerading as a dove.
Additional links for Soveit posters