FILE PHOTO: Hezbollah leader Sayyed Hassan Nasrallah addresses supporters via a screen in Beirut, Lebanon, September 20, 2018. REUTERS/Aziz Taher/File Photo

BEIRUT (Reuters) - Lebanon’s Hezbollah raised the prospect of retaliation by Iran and its allies over U.S. sanctions, saying on Wednesday that all options were on the table were Washington to take steps that “threaten our nation”.

Sayyed Hassan Nasrallah, leader of the heavily armed Iranian-backed Shi’ite group, said the United States’ move this week to designate Iran’s Revolutionary Guards as a terrorist organization reflected a failure of U.S. policy in the Middle East.

Iran and its allies, which include Hezbollah, had so far made do with condemnation in response to the U.S. sanctions, said Nasrallah, before adding that this was “not a permanent and fixed policy”.

“There are measures which, if taken by the Americans ... who said they will remain without response?” he said in a televised speech delivered to an event for Hezbollah’s wounded fighters.

“There will be an appropriate response for sure,” he said. Iran and its allies held “many strong cards”, he added.

Hezbollah was founded by the Revolutionary Guards in 1982 and has long been designated as a terrorist group by the United States. U.S. President Donald Trump’s administration has tightened sanctions against Hezbollah as part of its wider regional policy to counter Iran.

U.S. Secretary of State Mike Pompeo said on Wednesday that Trump would continue to increase pressure on Iran.