Resume Cover Letter

why I want to work with this type of organization and what drives me to join them. IN my cover letter I should show what is my motivation to work in the humanitarian sector and the reasons that convinced me to apply to them are decisive.
Kindly refer to my attached cover letter, to have information on my last work experience and make it relative to working with the humanitarian organization am applying for.
The job is applying for about being with the delegation who travel to countries in arm-conflict and assist people in need and refugees.
So please consider adding strong motivation to my cover letter.
Refer to the attached cover letter