The longer-term domestic political repercussions of the retreat from Lạng Sơn were considerable. The ignominious end to the Sino-French War temporarily checked French domestic fervor for colonial expansion and culminated in the 'Tonkin Debate' of December 1885, in which the Chamber of Deputies voted to sustain the French commitment in Tonkin by the very narrowest of margins. Other French colonial projects, including the conquest of Madagascar, were deferred for several years.