We never invaded the country of North Vietnam, North Vietnam was invading South Vietnam and we and other nations like South Korea and Australia, Thailand, and New Zealand were helping the country of South Vietnam fight off the invasion, defending, not invading.
Oh sure! Like we've done in our forever wars both direct and indirect in places like...
-Iraq
-Afghanistan
-Panama
-Granada
-Libya
-Hungary
-Ukraine
-Somalia
-Maidan Revolution
-Arab Spring
-Over 75 attempts at regime change around the world
Yep. None of these were invasions.
If you like it so much, send your kid to die for some made-up cause -- not mine. Tell your story to some Mom/Dad/Husband/Brother/Sister that their loved one's life was worth some political lie like the Gulf of Tonkin or WMDs in Iraq.
And pray tell, how we can continue this unsustainable path we are on, which has cost us trillions, to the point that we are now in debt to the tune of $36 trillion and growing every single day? That almost 15% of our national budget goes to pay only the interest, and another 15% on a bloated, ineffective military.
Just 'cause you call it "defending" don't change them facts.
Keep on dreaming cowboy.