Alternate History Challenge- No post-1945 undeclared wars for the United States

[raharris1973]

Here's the challenge: With a PoD, no earlier than November 1, 1949, have there be no undeclared wars for the United States between then and the present day.

This challenge can be resolved in more than one major way, two of the ways I can think of right away are:

Congress formally declares war any time the US is a direct participant in a war in the second half of the 20th century or 21st century, or

There is a constitutional amendment ceding the war declaration power from Congress to the President as necessary under modern geopolitical conditions instead of OTL's Congressional abdication or the half-assed compromise of endorsing use of force resolutions short of a declaration of war.

For reference, here's a history of US declarations of war: Declaration of war by the United States - Wikipedia

How do you meet the challenge within the stated parameters, and what's the consequences to American and world history of a world where the challenge is met?

 

[raharris1973]

Added a poll on this.

 

[Atarlost]

The constitutional amendment doesn't need to cede the power to declare war, it just needs to allow war to be declared by a bare majority instead of a supermajority as that is what is required anyways to pass the use of force authorizations that replaced formal declarations of war.

 

[raharris1973]

The constitutional amendment doesn't need to cede the power to declare war, it just needs to allow war to be declared by a bare majority instead of a supermajority as that is what is required anyways to pass the use of force authorizations that replaced formal declarations of war.

I think only simple majorities are only needed for constitutional DoWs, but it has always felt uncomfortable not to have overwhelming margins of support. There is no requirement for a two-thirds majority, unlike for a treaty.