An International lawyer specializes in the law (and laws) of other countries, i.e. Africa, as you mention. Not all countries have the same laws, or interpretations of the laws, so it is important to have an International Lawyer, or a lawyer from the particular country, if you're involved in a case outside of the US. You could also just hire a lawyer in Africa.
I don't want to dispute the information already provided by another post but here is my experience. Get in contact with an attorney ASAP. A personal injury lawyer will work on a contingency basis meaning you don't have to pay him unless you are successful in winning the case. Second, never take a settlement from an insurance company until you have consulted with a lawyer. Always remember like attorneys, insurance companies are set-up to make money! It is the adjusters responsibility to pay you the least amount of money for damages including pain and suffering and its the attorneys responsibility to get you fair compensation for damages etc. Depending upon your situation here is a good list of things you should consider fighting for....
medical expenses, loss of wages, loss of job (if it applies), cost of aides, cost of physical therapy, cost of counseling (if it applies), ongoing medical expenses related to the accident, pain and suffering, hospital bills, out of pocket expenses (such as mileage to and from physical therapy etc.)
While you may not recover all these expense related to your accident your attorney should be ready to fight for full compensation!!!
Again, always remember the following: An insurance company wants to settle the claim out of court because there is a good chance you can receive more money if you are represented by an experience personal injury lawyer. Furthermore there first offer is seldomly their best offer!!!!