Updated

TOKYO-- Japan and the United States agreed Wednesday to proceed with plans to transfer thousands of U.S. troops out of the southern Japanese island of Okinawa, leaving behind the stalled discussion of the closure of a major U.S. Marine base there.

The transfer, a key to U.S. troop restructuring in the Pacific, has been in limbo for years because it was linked to the closure and replacement of the strategically important base, which has been fiercely opposed by Okinawa residents.

The announcement Wednesday follows high-level talks to rework a 2006 agreement for 8,000 Marines on Okinawa to move to the U.S. territory of Guam by 2014 if a replacement for the base -- Marine Corps Air Station Futenma -- could be built.

That agreement has been effectively scuttled by opposition on Okinawa, where many residents believe the base should simply be closed and moved overseas or elsewhere in Japan. More than half of the 50,000 U.S. troops in Japan, including 18,000 Marines, are stationed on Okinawa, taking up around 10 percent of the island with nearly 40 bases and facilities.

In a joint statement Wednesday, the two governments said the transfer of thousands of U.S. Marines to Guam would not require the prior closure of Futenma, as in the original pact. Details of the realignment will be discussed further, but about 10,000 troops will remain on Okinawa, as in the original agreement.

Foreign Minister Koichiro Gemba told a news conference that he hoped the progress on the realignment plan would help the two countries step up deterrence in the Asia-Pacific region. He also said Tokyo and Washington would continue efforts to eventually close Futenma.

Wednesday's statement was vague on specifics of what lies ahead. Officials said details would be determined through further discussions over the next few months.

But senior Japanese officials have said 4,700 Marines will be transferred to Guam. The remaining 3,300 would reportedly rotate among Australia, Hawaii and the Philippines.

Progress on the issue is important to the United States, which is looking to revise its military and diplomatic posture in Asia -- in what is being called the "Pacific Pivot" -- to reflect the rising power of China and increasing tensions over territorial disputes throughout the region.

Washington is also under pressure to make the most of its resources as budget cuts loom in Congress with the winding down of combat operations in Iraq and Afghanistan.
Guam has pushed hard for the buildup because of the potential economic boom.

"We are the closest U.S. community to Asia. We are very patriotic citizens. And unlike many foreign countries and even some U.S. communities, we welcome an increased military presence," Gov. Eddie Calvo said in a statement released last week. "We are the closest U.S. community to the fastest-growing region in the world."

Tokyo, meanwhile, is hoping the reduction of troops on Okinawa will ease local opposition and demonstrate its desire to stand by promises to reduce the island's share of the troop-hosting burden. Officials say they remain committed to closing Futenma, which the U.S. and Japan agreed to do after the 1995 rape of a schoolgirl by three American servicemen led to mass protests.

"We decided to choose to reduce Okinawa's burden as much as possible rather than being stuck in a stalemate by sticking to an earlier package," Gemba said, stressing Tokyo's effort to serve Okinawa's interest as much as possible.

But Okinawa Gov. Hirokazu Nakaima gave a mixed response. He welcomed the agreement to move ahead with the Marines' relocation and a return of some of the bases as serving "Okinawans' desire to reduce the U.S. military presence," but repeated his rejection to move Futenma to another location on the island.

"A relocation without local consent would be impossible. We want Futenma moved out of Okinawa," Nakaima said in a statement.

The most likely replacement site, on a less crowded part of the island, is widely opposed on Okinawa and its viability remains a heated political debate.

Guam, which is being built up to play a greater role in Washington's Asia-Pacific strategy, could also stand to get far fewer Marines than expected if the new plan goes through. The tiny U.S. territory had been counting on a huge boost from the restructuring plan, and may have to revise its forecasts.

But officials said the revised number could be more manageable.

A smaller contingent of Marines would alleviate concerns on Guam that the swelling military presence would overwhelm the island's infrastructure and environment.

Mark G. Calvo, the director of Guam's military buildup office, said the territory has been briefed by the Department of Defense about the talks with Japan and supports the transfer, even if it is smaller than expected. He said the idea of reducing it to about 4,000 Marines had been discussed after an environmental impact assessment two years ago pointed to possible problems.

"There are concerns about a loss of economic benefits, but it puts us in a better position to adjust our infrastructure," he said.