And the rising ambitions of these eastern nations in Africa have spurred the Americans into action, anxious not to be outdone in a continent which they feel should be in their orbit.

• 非洲东部国家的突起的雄心已经让美国采取了行动，因为他们担心在非洲大陆失去自己的优势，而他们认为在自己的势力范围内是应得的。