Why dose everybody keep mentioning militaries that aren't capable even when compared to their neighbors? Kenya, Ghana and Tanzania shouldn't be on that list and nobody seems to want to mention Libya (much more capable than three mentioned above).
Tanzania, true, but that's mostly due to the fact that they pretty much stopped funding their military. The defence budget amounts to somewhere around 0.1-0.2% GDP nowadays, and their equipment reflects that. And they don't really need an effective military either - other than for anti-smuggler/anti-piracy operations, they don't have any real mission as currently all neighbors are "friendly". They have definitely proven before though (against Idi Amin) that in case of war, however, they can rapidly increase funding, scale up their forces and beat back supposedly superior enemies. Both on the ground and in the air.
Kenya, however, has a rather modern, well-funded military really. For African standards anyway, and yes, i'm including Algeria, Lybia and Egypt in that. They might lack a bit in punch (especially regarding the airforce with its few remaining F-5E), but their training iirc is supported by US and European cooperation programs.
Kenya currently provides in major operations:
UNAMSIL (Sierra Leone) - 11 military observers, 79 staff officers, one infantry battalion (996 men)
other UN operations - 31 military observers, 15 staff officers, 57 police
recently withdrawn:
UNMEE (Ethiopia/Eritrea border) - 13 staff officers, one infantry battalion (603 men)
Kenya actually
hosts peace-keeping seminars and training for other nations.
edit: The official UN peacekeeping operations site can be found
here. Includes a list of troop contributions (updated regularly) for all missions, countries, contributors etc, under Facts & Figures / Troop Contributors.