Obama in Asia: Military deal tops Philippine agenda
US President Barack Obama says that a new US-Philippine military pact will promote stability in the region.
The deal, signed in Manila hours before Mr Obama touched down, allows a bigger US military presence in the country.
Mr Obama said the deal was not intended to contain China, with whom Manila is embroiled in a bitter territorial row.
But he backed Manila's move to seek UN arbitration over its maritime dispute with Beijing.
"Our goal is not to counter China. Our goal is not to contain China. Our goal is to make sure international rules and norms are respected and that includes in the area of international disputes," he said.
Shortly after arriving, Mr Obama held talks with President Benigno Aquino and was later to attend a state dinner. Manila is the final stop of the US president's four-nation Asia tour.
The 10-year military deal was signed by Philippine Defence Minister Voltaire Gazmin and US Ambassador Philip Goldberg on Monday morning.
This agreement is all about China, with whom the Philippine government has long-running territorial disputes in the South China Sea.
Until 1992 the headquarters of the US Seventh Fleet used to be in Subic Bay but this new agreement is not about permanent bases - rather there will be a greater presence of US forces as ships and aircraft rotate through the Philippines on specific deployments.
It is a powerful signal to Beijing both of the Philippines' desire to protect its interests - it is also looking to purchase a third Hamilton-Class cutter from the US coast guard - and of Washington's continued desire to step up its ability to project military force throughout the region.
President Barack Obama insists that Washington is not seeking to contain China. But the US pivot to Asia in the face of a more assertive China's modernisation of its armed forces means that there is inevitably a military dimension to their regional competition.
Under the agreement, the US will have better access to military bases, ports and airfields. US troops would rotate through these facilities and engage in joint training, officials said.
Mr Obama said the US was not planning to rebuild old bases or construct new ones under the security pact.
"We'll work together to build the Philippines' defence capabilities and work with other nations to promote regional stability such as in the South China Sea," he said.
In a statement, Foreign Secretary Albert del Rosario described it as "milestone in our shared history as enduring treaty allies".
"The EDCA [Enhanced Defence Co-operation Agreement] elevates to a higher plane of engagement our already robust defence alliance," he said.
However, the presence of foreign troops is a sensitive issue in the Philippines, a former US colony.
Anti-US activists who say the deal will not benefit the Philippines and harms its sovereignty were expected to protest during Mr Obama's visit.
The US used to have large bases in the Philippines but these were closed in the early 1990s. US troops have also been active in the southern Philippines, where al-Qaeda-linked militants are based.
In recent months, however, Washington and Manila have moved to strengthen ties again, as the Philippine relationship with China has deteriorated amid a more assertive stance from Beijing on its territorial claims.
China claims a U-shaped swathe of the South China Sea - an area that includes territories that several South East Asia nations say belong to them.
In 2012, ships from China and the Philippines were involved in a long stand-off at the Scarborough Shoal.
More recently, the Philippines has accused China of blockading sailors stationed aboard a navy ship that has been grounded on a disputed reef for years.
Manila has initiated action against China on the territorial issue at the UN court, although China says it will not take part in the process.
"Both President Obama and I share the conviction that territorial and maritime disputes in the Asia-Pacific region should be settled peacefully based on international law," Mr Aquino said at a joint news conference.
The US president has already visited Japan, South Korea and Malaysia. He is not visiting Beijing on this occasion.