* Wall St opens slightly lower after recent highs * Euro recovers from 2-week low, currency war talk increases * Brent crude slides under $118 a barrel * Most Asian financial centers shut for Lunar New Year By Leah Schnurr NEW YORK, Feb 11 (Reuters) - U.S. stocks faltered on Monday, taking a breather after hitting multi-year highs, while the euro recovered from a two-week low as talk of currency wars unnerved investors. Encouraging U.S. and Chinese data last week helped push U.S. equities higher, sending the tech-focused Nasdaq to a 12-year closing high and the S&P 500 to a five-year peak. With no major economic or corporate news on Monday, investors were left with little reason to push the market higher, for now. Federal Reserve Vice Chair Janet Yellen was due to speak about the economic recovery at 1 p.m. (1800 GMT). Still, technical indicators are "looking very good" and could give the market a floor, said Peter Cardillo, chief market economist at Rockwell Global Capital in New York. He said the market will pay attention to Yellen's speech, but he does not expect any deviation from her traditionally dovish monetary policy stance. Shortly after the opening bell, the Dow Jones industrial average was off 45.76 points, or 0.33 percent, at 13,947.21. The Standard & Poor's 500 Index was down 3.25 points, or 0.21 percent, at 1,514.68. The Nasdaq Composite Index was down 8.81 points, or 0.28 percent, at 3,185.06. The benchmark 10-year U.S. Treasury note was down 1/32, the yield at 1.9518 percent. MSCI's world equity index was down 0.46 percent, and the pan-European FTSEurofirst 300 index fell 0.7 percent. Tensions over whether some countries are deliberately trying to weaken their currencies were heightened, with French Finance Minister Pierre Moscovici saying euro zone countries need closer cooperation on exchange rate policy. He said the issue would be discussed at a meeting of euro zone finance ministers later on Monday. The comments come after European Central Bank President Mario Draghi suggested last week that further euro strength could lead to an interest rate cut. French President Francois Hollande has also urged the euro zone to set an exchange rate target. The Group of Seven major industrial nations may be about to add its weight to the debate in an effort to cool the rhetoric. Two G20 officials told Reuters the group was considering making a statement this week reaffirming a commitment to "market-determined" exchange rates. G20 finance ministers and central bankers meet in Moscow on Friday and Saturday. "The idea of being interventionist in currencies is not particularly new. But at the moment, because some of the bigger players are at the forefront, it feels like a much more pressing issue for markets," said Daragh Maher, FX strategist at HSBC. The fear of competitive devaluations by major economies has been building since new Japanese Prime Minister Shinzo Abe began putting pressure on the country's central bank to take aggressive easing measures to revive the nation's economy. The euro edged up 0.1 percent to $1.3369 as speculators bought into the dip after the currency touched a two-week low of $1.3325 earlier in Asian trade. Brent crude prices dropped below $118 a barrel as concern about the euro zone economy eclipsed stronger-than-expected demand growth in China. Trade data out of China had sent Brent crude to a nine-month high on Friday. Trade was set to be limited this week as many Asian markets are shut due to the Chinese New Year. Brent crude fell $1.27 to $117.63 a barrel, while U.S. crude futures slipped 42 cents to $95.30.