Syria certainly does not have good relations with the US. Currently the White House is considering providing more, potentially lethal aid to Syrian rebels. The White House Press Secretary has stated it is "highly likely" that the Assad regime has used sarin nerve gas.
US relations with Sudan is not much better due to the humanitarian crisis in Darfur.
[1] http://bigstory.ap.org/article/white-house-assad-likely-behi... [2] http://en.wikipedia.org/wiki/International_response_to_the_W...