A GLIMPSE OF THE LOOK AND FEEL OF AFRICA:

Congo
Ghost In The Darkness
Greystoke: The Legend Of Tarzan
Gorillas In The Mist
Chaka Zulu
Out Of Africa
The Gods Must Be Crazy
Casablanca
Born Free
White Hunter, Black Heart
Bohpa
Kilimanjaro
Daktari
Sheltering Sky
I Dreamed Of Africa
Also recommended are any documentaries on or which take place in Africa, the Travel Channel, Discovery, History, TLC, and Animal Planet channels are the best sources for such.
 

Aliens
Soldier
Starship Troopers
Starship Troopers (The Anime)
Roughnecks: Starship Troopers
Earth: Above And Beyond
Macross Plus
Venus Wars
Grey: Digital Target
Bounty Dog
Big Wars
Screamers
 

Navy Seals
G.I. Jane
Platoon
Hamburger Hill
Apocalypse Now
The Killing Fields
Full Metal Jacket
Casualties Of War
Good Morning Vietnam
Bullet In The Head
Better Tomorow III
The Milagro Beanfield War
Air America
Uncommon Valor
Three Kings
Predator
Sniper
Rambo III
Area 88
Clear And Present Danger
Tour Of Duty
the movie about the russian tank crew in afghanistan

There are far too many reference books for me to try and list, the best reference material on Africa to be found anywhere however are:
 

Encyclopeadia's
National Geographic magazine.

There are however a few comics I would like to mention that are a valuable source of inspiration.  As with the reference books, trying to list fictional books on Africa is a lost cause.
 

Third World War - Fleetway - probably the biggest source of inspiration I had.  This phenomenal 6 issue miniseries is incredibly rare, however it is cheap and the only place I have found issues were in 25 cent bins at stores and cons.  I strongly recomend picking up this series if you get the chance.
Appleseed - Dark Horse
Congo Bill - DC/Vertigo
Team 7 - Image/Wildstorm
Black Ops - Image/Wildstorm
The Nam - Marvel/Epic
In Country: The Nam - (This was put out by a small press company, I don't remember which, however Don Lomax was responsible for it.)
Chemical Warfare - (Again put out by a small press company)
Aliens: Colonial Marines - Dark Horse
Martha Washington Goes To War - Dark Horse
Heartbreakers - Dark Horse
Generation Zero - Marvel/Epic

Other Role-playing games which offer good inspiration and military info are:

Advanced Recon from Palladium
Twilight 2000 from GDW
and to a very limited extent,
Robotech from Palladium