The dollar failed to get a safe-haven boost despite news that the Ukraine-Russia conflict had entered a potentially dangerous phase.
A robust U.S. 30-year bond auction supported Treasuries prices in general and weighed on yields, which has underpinned the greenback, analysts said.
The British pound also falls on inflation, wages data, and the yen is subdued after Japan's Q2 GDP contraction.
The euro fell towards 9-month lows against the dollar on Tuesday, as investors positioned for a weak German sentiment survey.
The Norwegian crown hit a seven-week high against the euro after Norway reported consumer inflation unexpectedly jumped in July.
Andrew Freris, CEO at Ecognosis Advisory, explains why the Australian dollar remains the "best carry currency in the world" despite attempts by the central bank to talk it down.
The euro gained against the dollar and sterling, and investors flocked to the Swiss Franc and yen as Obama approved air strikes in Iraq.
Malcolm Wood, Head of Investment Strategy at Morgan Stanley Wealth Management, explains why the Aussie dollar could fall to $0.80 against the greenback.
The yen came under pressure from Japan's plans to increase its pension allocation to the domestic stock market.
Jonathan Cavenagh, Senior FX Strategist at Westpac Institutional Bank, expects the Australian dollar to weaken further against the greenback following July's dismal jobs data.
The dollar held near an 11-month high, supported by upbeat U.S. data, while the New Zealand dollar took a hit from a fall in dairy prices.
The US dollar extended a rally after an 8-1/2 year high in services growth and a bigger-than-expected increase in factory orders.
The euro headed back below $1.34 on Tuesday after a survey of Italian service sector purchasing managers disappointed on the low side.
Emerging market currencies are likely to remain weak for the long term, and that's spurring a strategy shift, General Motors said.
The dollar hovered around 10-month highs ahead of U.S. jobs data on Friday.
The U.S. dollar edged higher against a basket of major currencies on Thursday after labor market data fueled expectations for a hawkish Fed.
The dollar rose against a basket of currencies on Wednesday, after the Fed announced it will cut its asset buying program by another $10 billion.
Fears over Ukraine unrest and an upcoming slew of US data are also pushing some currencies slightly down against the dollar.
With the resurgent greenback set to react further to economic data coming from the U.S., many analysts have argued that sterling has reached a tipping point.
The dollar fell slightly against the euro ahead of Wednesday's release of US gross domestic product growth and a Fed policy announcement.