Section 2008 of the act gives blanket authority to the President for an invasion of Belgium to free any national or designated ally being tried before the ICC:

SEC. 2008. AUTHORITY TO FREE MEMBERS OF THE ARMED FORCES OF THE UNITED STATES AND CERTAIN OTHER PERSONS DETAINED OR IMPRISONED BY OR ON BEHALF OF THE INTERNATIONAL CRIMINAL COURT

Frankly, I don't believe the congressional democrats are willing to spend the political capital needed to repeal this, even noting the fact that leaving a blanket authorization for the use of military force is insane.

This kind of nationalism enjoys as broad a support in the US. We're a nation of jihadists.

"It Can't Be Just About Us"
--Frank Schnittger, ETian Extraordinaire