Americans should first stop trimming their children's genitals in the name of religion, before passing judgment. Same goes for censoring scientific theories in textbooks.
;)
Speaking from strictly pragmatic view, it's always best to take a non-violent approach whenever possible. Money is all that's needed to push your agenda in a country, without any troops or tanks.
That said, chances are that anything Uganda-related is pretty low on US GOV priority list.