Iran Press/ America: The ongoing diplomatic war between the West and Moscow has escalated dramatically following Russia's military operation in Ukraine, prompting the US to impose various sanctions on Moscow.

According to Tass, washington expects the sanctions to impose acute and immediate economic harm on Russia.

"This will include a ban on all new investment in Russia, increased sanctions on financial institutions and state-owned enterprises in Russia, and sanctions on Russian government officials and their family members," Jen Psaki said, adding that these measures will degrade key instruments of Russian state power.

"The United States is trying to put Russia in a situation when it will have to choose between defaulting or draining its remaining foreign currency reserves," Psaki has told.

"The goal is to force them to make a choice," she said when asked whether the US goal at this stage was to trigger a sovereign default in Russiaadding: "Russia does not have unlimited resources - especially now, given the crippling sanctions we’ve put in place - and they are going to be forced to choose between draining remaining valuable dollar reserves."

When asked about whether the White House had any assessment on when a default may be expected, she replied: "I don’t have an assessment of that. It depends, in part, on what decisions they [the Russians] make."

On February 24, Russian President Vladimir Putin said in an early morning televised address that he had launched a special military operation in Ukraine in response to a request for help from the leaders of the Donbass republics.

He claimed that Moscow had no intention of occupying Ukrainian territories, the sole purpose of the operation, the leader stressed, is the demilitarization and denazification of Ukraine.

The United States, the United Kingdom, the European Union, and some other countries responded by imposing sanctions on Russian individuals and companies.