Japan is about to become the world's biggest aid donor but is struggling over who should give the money away and who should get it.

The country is torn between increasing U.S. demands that it use its aid to support U.S. strategic interests and growing self-confidence that it can fashion an agenda of its own, Japanese officials said.Politicians and bureaucrats are battling each other as they try to work out a strategy to govern Japan's mounting assistance to the developing world.

Japan has budgeted $10 billion in aid for the fiscal year ending next March. That should carry it past the United States into the top spot among aid donors.