Center for Advanced Operational Cultural Learning Africa desk research analyst Florence Dawson enlisted in the Marine Corps in 2004 after waiting six years to receive her Green Card. Dawson teaches French and other cultural aspects of Africa to Marines and other service members who are preparing to deploy to regions of the continent. - Center for Advanced Operational Cultural Learning Africa desk research analyst Florence Dawson enlisted in the Marine Corps in 2004 after waiting six years to receive her Green Card. Dawson teaches French and other cultural aspects of Africa to Marines and other service members who are preparing to deploy to regions of the continent.