The righs group also details how it says the Yemeni military's intense aerial bombardment as well as the use of inappropriate battlefield weapons in residential areas further endangered a population already in peril.
"Scores of civilians, including children, were killed," reads the report, "and many more injured as a result of air strikes and artillery and mortar attacks by government forces."
The "toxic mix of fighting and human rights abuses," it states, "meant an estimated 250,000 people from the southern governorates, particularly Abyan, were displaced."
The Yemeni government said it is studying the Amnesty report.
"The Yemeni government will carefully examine the findings," said Mohammed Albasha, the spokesman for the Yemeni Embassy in Washington. "Sanaa continues to welcome the international community's support of the government's efforts to promote and protect human rights."
Albasha added that Yemen's President Abdu Rabu Mansour Hadi had this past September "established a committee to investigate human rights violations" and that the country had "officially adopted the Paris Principles, which provide guidelines on the protection of children during armed conflict."
While Ansar al-Sharia was ultimately driven out and Yemen's government ended up claiming success, continued instability in the country, a haven for Al-Qaeda, has left many wondering how long will that victory may last.