Associated Press
German Finance Minister Wolfgang Schaeuble, left, speaks with British Finance Minister George Osborne, center, and Danish Finance Minister Margrethe Vestager during a meeting of EU finance ministers in Brussels on Tuesday, Jan. 24, 2012. Greece's finance minister believes his country will be able to reach a deal with private bondholders to cut its debt, despite tougher terms set by its eurozone partners. (AP Photo/Virginia Mayo)

TEHRAN, Iran — Military power near the strategic Strait of Hormuz could be bolstered by additional British forces, the country's defense secretary said Tuesday, as a defiant Iran shrugged off Europe's oil embargo and moved ahead with plans to hold naval exercises alongside the oil tanker shipping lanes it has threatened to block.

Tehran's bravado was in sharp contrast to the widening international pressures seeking to curb its nuclear program.

Australia became the latest country to shun Iranian oil, and the European Union's foreign policy chief traveled to Israel for talks certain to convey the West's belief that increasing economic isolation, rather than a push toward military action, is the most effective tool against Iran's leadership.

Iran also has accused Israel of masterminding a series of covert attacks such as a malicious computer virus designed to infiltrate uranium enrichment labs and targeted slayings of members of Iran's scientific community. Israel has made no direct comments on the claims, but dangled hints that clandestine operations are possible by Iran's many foes.

The EU on Monday joined Washington in backing sanctions targeting Iran's vital oil industry, which accounts for about 80 percent of its foreign currency revenues. The vote in Brussels came a day after a Western flotilla — two British and French warships and the American aircraft carrier USS Abraham Lincoln's battle group — entered the Gulf in a show of force against any Iranian attempts to disrupt the route for one-fifth of the world's oil.

Iran's commanders, meanwhile, are preparing their own message. Plans remain in place for the powerful Revolutionary Guard to send its maritime forces for maneuvers next month in the Strait, which is jointly controlled by Iran and Oman and has become the latest flashpoint for a potential military confrontation.

"Elements within the European Union, by pursuing the policies of the U.S. and adopting a hostile approach, are seeking to create tensions with the Islamic Republic of Iran," the official Islamic Republic News Agency quoted Ali Asghar Khaji, a senior foreign ministry official, as saying. He called the EU decision "irrational."

But other Iranian officials claimed the sanctions would not work — and could even benefit OPEC giant Iran by driving up crude prices.

"The oil embargo will lead to higher prices. Europe will be the loser and Iran will earn more because of high prices," Iran's oil ministry spokesman, Alireza Nikzad Rahbar, told state TV.

Iran also summoned the Danish ambassador in Tehran over the EU's oil embargo. Denmark currently holds the EU presidency.