The US on Friday unleashed its most in depth bundle of sanctions on Russia because the invasion of Ukraine two years in the past, concentrating on Russia’s monetary sector and military-industrial complicated in a broad effort to degrade the Kremlin’s struggle machine.

The sweeping sanctions come because the struggle enters its third yr, and precisely one week after the dying of the opposition chief Aleksei A. Navalny, for which the Biden administration blames President Vladimir V. Putin of Russia. With Congress struggling to achieve an settlement on offering extra assist to Ukraine, the US has change into more and more reliant on monetary instruments to sluggish Russia’s capacity to restock its navy provides and to place strain on its economic system.

Saying the sanctions on Friday, President Biden reiterated his calls on Congress to offer extra funding to Ukraine earlier than it’s too late.

“The failure to help Ukraine at this important second won’t be forgotten,” he mentioned in an announcement.

The president added that the sanctions would additional prohibit Russia’s power revenues and crack down on its sanctions evasion efforts throughout a number of continents.

“If Putin doesn’t pay the worth for his dying and destruction, he’ll hold going,” Mr. Biden mentioned. “And the prices to the US — together with our NATO allies and companions in Europe and around the globe — will rise.”

The brand new sanctions embody measures created by the Treasury Division, the State Division and the Commerce Division, and so they goal greater than 500 people and entities which were related to Russia’s aggression towards Ukraine.

The Biden administration can also be imposing sanctions on three Russian authorities officers who have been related to Mr. Navalny’s dying.

“Russia’s economic system and military-industrial base are displaying clear indicators of weak spot partially as a result of actions we, together with our companions and allies around the globe, have taken to help Ukraine’s courageous protection,” Treasury Secretary Janet L. Yellen mentioned in an announcement. “Putin has mortgaged the current and way forward for the Russian folks for his personal goals to subjugate Ukraine.”

During the last two years, the US has labored with allies from the Group of seven nations to cap the worth at which Russian oil might be bought on international markets, frozen a whole bunch of billions of {dollars} of Russian central financial institution belongings, and enacted commerce restrictions to attempt to block the circulate of expertise and gear that Russia makes use of to produce its navy.

The measures introduced on Friday try and go additional, specializing in key cogs in Russia’s monetary system, digging deeper into its navy provide chain and going after enablers in different nations like China and the United Arab Emirates.

The sanctions goal two of Russia’s largest corporations by income, SUEK and Mechel. SUEK’s transportation and logistics operation serves the Russian navy, and Mechel is a significant producer of specialty steels. The measures additionally goal Russia’s monetary sector, with sanctions on the Nationwide Fee Card System joint inventory firm, which operates the Russian nationwide cost system.

In making an attempt to sluggish Russia’s struggle effort, the Biden administration went past simply its main protection corporations. The sanctions imposed on Friday additionally go after producers of lubricants, robotics, ball bearings and batteries utilized by the Russian navy.

The US was not alone in ratcheting up the financial strain on Russia this week. The European Union unveiled its thirteenth tranche of sanctions on Russia, banning almost 200 folks and entities which were serving to Russia procure weapons from touring or doing enterprise inside the bloc. Britain additionally introduced sanctions on corporations linked to Russia’s ammunition provide chain, in addition to on six Russians accused of operating the Arctic jail the place Mr. Navalny died.

Regardless of the breadth of the sanctions that Western allies have imposed on Russia, its economic system has proved to be resilient. China, India and Brazil have been shopping for Russian oil in report portions, and spending on the struggle effort has stimulated the Russian economic system, which the Worldwide Financial Fund mentioned final month was rising quicker than anticipated.

It’s unclear whether or not the sanctions that have been introduced on Friday will make a major distinction within the trajectory of the struggle.

“These sanctions have appreciable symbolic significance however may show of restricted sensible worth in crimping the Russian economic system’s efficiency or deterring Putin’s navy aggressions, notably on condition that navy assist to Ukraine stays in jeopardy in Congress,” mentioned Eswar S. Prasad, a professor of commerce and economics at Cornell College.

The US and Europe are debating taking extra aggressive measures, corresponding to seizing $300 billion of Russia’s frozen central financial institution belongings and giving the funds to Ukraine to finance its struggle and reconstruction efforts.

Wally Adeyemo, the deputy Treasury secretary, informed reporters on Thursday that the Group of seven was nonetheless discussing probably the most legally viable method to make use of Russia’s cash to profit Ukraine.

“Basically, we’re not going to do something on Russian sovereign belongings till we transfer as a coalition,” Mr. Adeyemo mentioned, pointing to a number of choices into account.

Whereas Mr. Adeyemo mentioned the brand new sanctions would “throw sand within the gears” of Russia’s navy, he maintained that a very powerful method to assist Ukraine win the struggle was by offering it with extra funding to hold on the combat.

“Sanctions alone can solely decelerate Russia,” he mentioned. “We’d like monetary help for Ukraine and for the weapons that they want to have the ability to be on the battlefield to defend themselves.”