CLEAN : Yemen: United Nations aid chief arrives in Sanaa

The video discusses a visit by the United Nations Humanitarian Chief to Sanaa and surrounding areas to assess how people are coping with ongoing difficulties. The focus is on identifying humanitarian needs, mobilizing resources, and ensuring access to aid. The Chief is accompanied by Jamie McGoldrick, the UN's resident and humanitarian coordinator in Yemen.

What is the role of the United Nations Humanitarian Chief as described in the text?

How does the speaker plan to mobilize resources to help the people?