The United States will always find an excuse to threaten new sanctions against Iran, which is in line with the decades-old policy of undermining the Islamic Republic as an independent sovereign nation in the Middle East, says an American political analyst.

White House spokesman Josh Earnest said Friday that Iran is “making important progress” in its efforts to implement the historic nuclear agreement, but did not rule out sanctions over its other activities, including the recent test of a ballistic missile.

Earnest said the International Atomic Energy Agency report on Iran's compliance with the nuclear accord is more than a technicality and there is ample reason to distrust Iran.

“The thing that the Iranians need to understand is that this is going to be the first in what undoubtedly will be a long series of objections of this sort” from the United States, Mark Glenn said in an interview with Press TV on Saturday.

“This latest statement coming out of the United States that sanctions may be applied to Iran because of her testing a ballistic missile; Iranians should just get used to this. It will always be this way as long as they’re involved in negotiations with the United States,” he argued.

“The United States will always find an excuse to threaten new sanctions on Iran,” Glenn stressed.

“Because what the United States is actually out to do is to reconfigure the entire Iranian system so that Iran ceases to be the force of stability and sovereignty that she is in the Middle East,” he said.

“People have got to understand that 1979 was a horrible year for the United States,” the analyst said, referring to the Islamic Revolution of Iran that deposed Shah Mohammad Reza Pahlavi. “In that year, the Iranians were able to break free from a Western and more importantly an American-installed dictator.”

Almost four decades later, Glenn said, this is “a thorn in the eye” of the United States that Iran is a sovereign nation.

“Iran stands as a shiny example to the other countries in the region who are held hostage to American and Zionist power,” he concluded.

Iran and the P5+1 group- the United States, France, Britain, Russia, China and Germany - finalized the text of the accord on Iran’s nuclear program in Vienna in July 2015.

Under the agreement known as JCPOA, Iran agreed to restrict its nuclear activities in exchange for, among other things, the removal of all nuclear-related economic and financial sanctions against the Islamic Republic.

By Press TV