In the context of the Vietnam War the Domino Theory is the political theory that if one nation comes under Communist control then neighboring nations will also come under Communist control.
On what evidence might this theory be based?
Prime Minister Sir Robert Menzies, 1966.
'I subscribe to the domino theory ... because I believe it obvious ... that if the Vietnam War ends with some compromise that denies South Vietnam a real and protected independence, Laos and Cambodia, Thailand, Malaysia, Singapore and Indonesia will be vulnerable ... this domino theory ... has formidable reality to Australians who see the boundaries of aggressive communism coming closer and closer.'
1966 Election campaign poster, Liberal Party of Australia.
Look carefully at this source.
How does it incorporate the sentiment of the “Domino Theory”?
What is the aim of this poster?
What strategy was the designer of the poster using to effect that aim?
Is this a reliable source of information about the reality of this theory? Explain your answer.