GLOBAL MARKETS-Support for U.S. action in Syria limits stocks' rise

* U.S. stocks end up but off day's highs

* Microsoft (NasdaqGS: MSFT - news) slumps after Nokia (Stockholm: NOKI-SEK.ST - news) deal

* Treasury bond selling resumes

* U.S. manufacturing sector expands

* U.S. dollar hits six-week high after major currencies

By Caroline Valetkevitch

NEW YORK, Sept 3 (Reuters) - World stock markets rose on

Tuesday but ended well off session highs as U.S. congressional

leaders voiced support for military intervention in Syria, while

bond yields rose and the dollar gained on strong U.S.

manufacturing data.

A report showing U.S. manufacturing hit its fastest pace in

more than two years bolstered expectations the Federal Reserve

could begin to reduce bond purchases when it meets later this

month.

Wall Street stocks rallied at the opening after President

Barack Obama said over the weekend that he would seek approval

from Congress for a Syria strike, delaying the threat to Middle

East stability and oil supplies. But the market pulled back

after comments from Republican House Speaker John Boehner

expressing support for action.

House Majority Leader Eric Cantor also pledged his support

for action, and Nancy Pelosi, Democratic minority leader in the

House of Representatives, said she believes Congress will

support a resolution authorizing the use of U.S. military force

against Syria.

"People still see uncertainty in Syria and want a decision

one way or another. Until we see something more definitive we

can see rallies continue to be questionable and a lot of selling

pressure," said J.J. Kinahan, chief strategist at TD Ameritrade

in Chicago.

Traders had braced for a U.S.-led strike against Syria this

weekend following chemical weapons attacks that U.S. officials

say killed 1,429 civilians.

The U.S. Congress returns from its summer recess on Sept. 9,

and will vote on authorizing a strike on Syria. While Obama has

been pushing Congress to back his plan, passage is by no means

certain.

On Wall Street, where markets were closed Monday for the

Labor Day holiday, the Dow Jones (DJI: ^DJI - news) industrial average

gained 23.65 points, or 0.16 percent, at 14,833.96. The Standard

& Poor's 500 Index was up 6.80 points, or 0.42 percent,

at 1,639.77. The Nasdaq Composite Index was up 22.74

points, or 0.63 percent, at 3,612.61.

MSCI (NYSE: MSCI - news) 's world equity index, which tracks

shares in 45 countries, was up 0.3 percent, while European

stocks ended down 0.4 percent.

Shares of Microsoft fell 4.6 percent to $31.88

after it announced a $7.2 billion bid for the phone business of

once-dominant Finnish manufacturer Nokia. U.S. shares

of Nokia shot up 31.3 percent to $5.12 in heavy

volume.

U.S. TREASURY SELLOFF RESUMES

The stronger U.S. data, combined with good data on the

eurozone and China manufacturing sectors published on Monday,

caused selling in the U.S. bond market to resume.

"The Syria issue had put a floor on bond prices last week,"

said Mike Cullinane, head of government bond trading at D.A.

Davidson in St. Petersburg, Florida.

The 10-year benchmark U.S. Treasury note was

down 20/32, its yield at 2.861 percent.

The yield reached as high as 2.902 percent earlier, roughly

3 basis points below a 25-month high recorded on Aug. 22,

according to Reuters data.

China's non-manufacturing purchasing managers' index dropped

slightly to 53.9 last month from July's 54.1. But it remained

solidly in expansion territory and suggested recent government

measures are supporting the economy.

The Treasury debt market posted negative returns for a

fourth straight month in August, the longest such streak since a

period spanning the end of 2010 to early 2011, when it recorded

monthly losses for six consecutive months, according to Barclays

data.

Traders expect the Fed to start reducing its $85

billion-a-month stimulus program at its Sept. 17-18 policy

meeting unless U.S. payroll numbers due on Friday fall

considerably short of forecasts.

The U.S. dollar jumped to a six-week high against major

currencies after the U.S. manufacturing data bolstered views the

Fed will start scaling back stimulus this month.

While expectations of a reduction in Fed bond purchases

support the dollar, a near-term withdrawal of Fed stimulus would

weigh on stocks, particularly those in emerging markets that

have come under pressure in recent months on expectations of

capital outflows.

The dollar index, which measures the greenback against a

basket of six major currencies, hit a high of 82.516, its

highest since July 22. It last traded at 82.358, up 0.3

percent.

Australia's dollar bounced more than half a cent as

its central bank kept interest rates at a record low 2.5

percent, as expected, on Tuesday.

Central banks in the euro zone, UK, Canada and Japan all

meet this week.

OIL, GOLD GAIN

Oil and gold prices also rose after comments supporting

Obama's call for limited U.S. strikes on Syria. Oil prices also

drew support from the improving economic data in the United

States and China and concerns over crude oil supply.

Brent crude rose $1.35 to settle at $115.68 a

barrel. U.S. oil settled at $108.54, up 89 cents from

Friday's settlement. There was no Monday settlement for the U.S.

benchmark due to the U.S. Labor Day holiday.

Spot gold rose as high as $1,416 an ounce and was

last up 1.4 percent at $1,413.51 an ounce.