What leadership skills and competencies come into play during preparation for, and response to a disaster?

I’m working on a public health multi-part question and need an explanation and answer to help me learn.

-What leadership skills and competencies come into play during preparation for, and response to a disaster?  Choose a recent natural disaster (i.e., hurricane, tornado, fire) or another disaster (i.e., shooting incident) and apply the skills and competencies that public health leaders would need for effective leadership and to implement solutions.

-What are the differences between a SWOT analysis and a PEST analysis?  How can you use each approach as a public health leader?

– now that you have gained valuable leadership and advocacy knowledge and perspectives, think of a time where an awareness of leadership and/or advocacy competencies would have helped you make a better decision.  Describe that experience and relate how, with what you know now, how you would have made the decision and why.