By Arshad Mohammed
Washington suspects Iran is trying to build a nuclear bomb under the cover of a civilian atomic energy program. Iran says its nuclear program is peaceful.
"We are also sending a message to Iran that we will defend American interests and … the interests of our allies," she told a news conference in the ex-Soviet state of Georgia.
"We take very, very strongly our obligation to help our allies defend themselves and no one should be confused about that," Rice said after meeting Georgian President Mikheil Saakashvili.
Iran rebuffed Washington's call to halt further missile tests by later announcing night time maneuvers. The tests rattled global oil markets pushing up the price of oil.
On Thursday Iranian satellite channel Press TV reported in a brief headline without giving details that "Iran's Revolutionary Guards test more missiles." State radio gave a similar report.
The United States has said it will not rule out military action against Iran but says that it is committed to seeking a diplomatic solution to the nuclear row.
Rice said that the U.S. is "working closely" with its friends in the region to make sure they are capable of defending themselves.
She said the development of a U.S. missile defense shield, which is to be partly based in the Czech Republic and Poland, would help dampen any threat of an attack from Iran.
"We also are able to look to the future of a missile defense system that will make it more difficult for Iran to threaten (and) and be bellicose and say terrible things because their missiles wont work," she said.
Russia, sensitive to any Western military build-up near its borders, says the missile shield is a threat to its security and has vowed to respond with unidentified military means if the shield is deployed.
(Reporting by Arshad Mohammed; Writing by Christian Lowe and James Kilner; Editing by Matthew Jones)
