President Obama cracked a joke about American troops during after-dinner remarks on his official visit to Australia.

The president qualified his joke by saying it was a true story involving American troops and Australian troops serving together in Afghanistan.

“Our guys, the Americans, couldn’t figure out why your guys were always talking about cheese,” Obama said. ”All day long. Morning, noon and night. Why are the Aussies always talking about cheese? And then, finally, they realized — it was their Australian friends just saying hello, just saying “cheers.”

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