On May 23rd, a firefight broke out in Marawi City between the Philippine government forces and armed non-state actors. The ‘battle of Marawi’ lasted for five months and resulted in mass displacement of civilians, widespread destruction of civilian infrastructure and loss of civilian lives. Amnesty International documented serious violations of international humanitarian law by all parties to the conflict, some of which amount to war crimes. Amnesty International is calling on the government of the Philippines to conduct a prompt, effective, and impartial investigation into the allegations of serious violations of international humanitarian and human rights law.