How did conflicts in Asia affect politics in the United States?

As the US did not exist until comparatively recently most

conflicts in Asia had no effect at all on the politics of the

US

Very true, but I wouldn't ignore the conflicts in Iraq,

Afghanistan, Vietnam, World War II, the Korean Expedition of of

1871 or the Philippine War of Independence. I'm sure some of these

have had some effect on US politics but I wouldn't be able to

answer your question directly.