Nearly all "conditional Unionists" joined with the secessionists. Ali Nasir Muhammad, the exiled South Yemen leader, assisted military operations against the secessionists. The Uyghur secessionists propose independence for Xinjiang as East Turkestan. The committee was made up of 4 secessionists, 10 moderates and 7 unionists. Soldiers were also stationed at the polls to discourage secessionists and their supporters. In western Missouri, local secessionists seized Liberty Arsenal. He sought to reconcile the war-torn nation by exonerating the secessionists. Abraham Lincoln invoked this power in the American Civil War to imprison Maryland secessionists. Gen. David E. Twiggs decided to surrender the arsenal peacefully to the secessionists. This resulted in lopsided representation of secessionists delegates. Negotiations between Britain and the Irish secessionists led to the signing of the Anglo-Irish Treaty. The Naga People's Convention (NPC), another major Naga organization, was opposed to the secessionists. It opened with works by the Berlin Secessionists, the Impressionists and the Expressionists. The policy report was prosaic and unemotional, but ended with a sharp condemnation of secessionists. Initially, some secessionists may have hoped for a peaceful departure.