Several nations in the ussouthcom aor are leading the way on military human rights reform. they are making important advances in

Let's get the acronyms identified first.  USSOUTHCOM AOR stands for the US Southern Command Area of Responsibility.  The US Southern Command's Area of Responsibility includes countries in Central and South America as well as the Caribbean.

The important advances are coming in terms of getting nations to recognize and respect international courts and rules regarding human rights.  There is something known as the InterAmerican Court of Human Rights (based in Costa Rica), which was brought into being in 1978.  Most of the nations within the USSOUTH AOR have allowed themselves to be subject to the jurisdiction of this court, thus insuring that basic rights and freedoms are being protected.

Delaware is the third state.

Explanation: