[BeauBo]

“Why isn’t the military taking out these invaders?”

Because they are unarmed civilians - non combatants under the law of war are not legal targets.

There is no Congressionally declared war to authorize the use of military force.

The Military is legally prohibited from enforcing domestic laws, under the Posse Comitatus Act.

[itsahoot]

There is no Congressionally declared war to authorize the use of military force.

Like that matters. Besides it doesn't take a declaration of war to defend our borders, just takes determination which we don't have as your post illustrates.

[MichaelCorleone]

“There is no Congressionally declared war to authorize the use of military force.”

Didn’t stop us from engaging in expensive and senseless wars in the ME.

Waco...Ruby Ridge...

[Mears]

“The Military is legally prohibited from enforcing domestic laws, under the Posse Comitatus Act.”
—

Then how did Eisenhower get away with it?

The National Guard can also be used.

.