Afghan displaced children stand at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

An Afghan displaced child pushes a hand cart at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

Afghan displaced children stand at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

Afghan displaced children stand at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

An Afghan displaced child sits at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

Afghan displaced children walk at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

Afghan displaced children walk at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

Afghan displaced children stand at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)

Afghan displaced children stand at a displaced camp on World Refugee Day in Kabul, capital of Afghanistan, June 20, 2018. (Xinhua/Rahmat Alizadah)