The National Democratic Alliance (NDA) waa koox ka mid ah xisbiyada siyaasadeed ee Suudaan oo la aasaasay 1989 si ay uga soo horjeedaan nidaamka Omar Hassan al-Bashir ka dib markii uu xukunka qabsaday afgambi milatari.
Bishii Juun 6, sanadkii 1989. NDA waxay heshiis la saxiixatay dowladda Suudaan bishii Juun 18, 2005, ka dib heshiis nabadeed oo lagu soo afjaray Dagaalkii Labaad ee Sokeeye ee Suudaan bishii Janaayo 9, 2005. Qaar ka mid ah arrimaha ayaa weli u baahan in la xaliyo kooxaha iska soo horjeeda, oo ay ku jiraan khilaafka iyo arrimaha bani'aadamnimada ee gobolka dagaalku ka dhacay ee Darfur. Kadib iska horimaadyo rabshado wata oo ka dhacay bariga, heshiis nabadeed oo gooni ah ayaa lala saxiixday Koongareeska Beja bishii Oktoobar 2006.