Backpacks are seen as part of a United Nations Children's Fund (UNICEF) installation on the lawn of the United Nations headquarters in New York, on Sept. 10, 2019. The installation features 3,758 backpacks in rows reminiscent of a graveyard, each one representing the loss of a young life to conflict during 2018. The installation, which will run through Sept. 10, is a message to world leaders ahead of the annual United Nations General Assembly and the 30th anniversary of the Convention on the Rights of the Child. (Xinhua/Li Muzi)

Backpacks are seen as part of a United Nations Children's Fund (UNICEF) installation on the lawn of the United Nations headquarters in New York, on Sept. 10, 2019. The installation features 3,758 backpacks in rows reminiscent of a graveyard, each one representing the loss of a young life to conflict during 2018. The installation, which will run through Sept. 10, is a message to world leaders ahead of the annual United Nations General Assembly and the 30th anniversary of the Convention on the Rights of the Child. (Xinhua/Li Muzi)

A backpack is seen as part of a United Nations Children's Fund (UNICEF) installation on the lawn of the United Nations headquarters in New York, on Sept. 10, 2019. The installation features 3,758 backpacks in rows reminiscent of a graveyard, each one representing the loss of a young life to conflict during 2018. The installation, which will run through Sept. 10, is a message to world leaders ahead of the annual United Nations General Assembly and the 30th anniversary of the Convention on the Rights of the Child. (Xinhua/Li Muzi)

Backpacks are seen as part of a United Nations Children's Fund (UNICEF) installation on the lawn of the United Nations headquarters in New York, on Sept. 10, 2019. The installation features 3,758 backpacks in rows reminiscent of a graveyard, each one representing the loss of a young life to conflict during 2018. The installation, which will run through Sept. 10, is a message to world leaders ahead of the annual United Nations General Assembly and the 30th anniversary of the Convention on the Rights of the Child. (Xinhua/Li Muzi)

Backpacks are seen as part of a United Nations Children's Fund (UNICEF) installation on the lawn of the United Nations headquarters in New York, on Sept. 10, 2019. The installation features 3,758 backpacks in rows reminiscent of a graveyard, each one representing the loss of a young life to conflict during 2018. The installation, which will run through Sept. 10, is a message to world leaders ahead of the annual United Nations General Assembly and the 30th anniversary of the Convention on the Rights of the Child. (Xinhua/Li Muzi)

Backpacks are seen as part of a United Nations Children's Fund (UNICEF) installation on the lawn of the United Nations headquarters in New York, on Sept. 10, 2019. The installation features 3,758 backpacks in rows reminiscent of a graveyard, each one representing the loss of a young life to conflict during 2018. The installation, which will run through Sept. 10, is a message to world leaders ahead of the annual United Nations General Assembly and the 30th anniversary of the Convention on the Rights of the Child. (Xinhua/Li Muzi)