'This has been a devastating year for those seeking to stand up for human rights and for those caught up in the suffering of war zones. We must hope that, looking backward to 2014 in the years to come, what we lives through will be seen as an ultimate low point from which we rose up and created a better future.'
Terrorist group Boko Haram has been suspected to be behind the third incident this year in which children have been used to carry out attacks in Nigeria.
Casi un millón de personas han huido de sus casas en Nigeria a causa de la violencia que afecta a la zona norte del país, y más de 135.000 han buscado refugio en Camerún, Chad y Níger.