The Biden administration is trying to prove that the U.S. support in the war can last longer than Russia.

President Biden has found it easy to rally American lawmakers and the public around that assistance. Europe is at risk of becoming the worst economic crisis in a generation as a result of the Russian invasion.

American officials say they have not seen any cracks in the NATO alliance, which members have agreed to back in the defense of their homeland. American officials say thatUkraine's recent battlefield successes will help shore up resolve in Europe.

anxiety has been caused by the jump in energy prices in Europe and the upcoming cold months. Russia's announcement that it wouldn't resume the flow of natural gas to Europe through itsNord Stream 1 line heightened those concerns.

Military and diplomatic analysts say that Mr. Putin thinks a gas shortage will hurt European support for Ukraine.

ImageUkrainian workers laboring at a wood company this summer. Preparations for a potentially harsh winter continue as Russia has cut gas.
Ukrainian workers laboring at a wood company this summer. Preparations for a potentially harsh winter continue as Russia has cut gas.Credit...Diego Ibarra Sanchez for The New York Times
Ukrainian workers laboring at a wood company this summer. Preparations for a potentially harsh winter continue as Russia has cut gas.

The secretary of state said that Russia had weaponized energy against the Europeans.

He said at NATO headquarters in Belgium that President Putin was betting that the actions would break the will of countries to stand with Ukraine. He bet that the Kremlin could bully other countries.

As Ukrainian forces began to make gains in the northeastern part of their country, Mr. Blinken went to NATO and to Kyiv.

The decree that Mr. Putin signed last month raising the target number of active-duty service members by 137,000 was a sign that he believed Russia could win a war of attrition.

A senior defense official said that he was signaling that he was trying to ground the situation. He was not authorized to speak publicly.

Mr. Biden wants to show that NATO is still committed. He is scheduled to speak to the UN General Assembly on Wednesday. Volodymyr Zelensky will address the assembly by video on the same day.

The support of the nation of Ukraine by the United States has set an example for the world, according to Senator Romney. I don't know how that will continue after the winter when heating costs go through the roof in Europe. I hope we can provide the support thatUkraine needs.

ImageSecretary of State Antony J. Blinken standing near a damaged residential building during his visit in Irpin, Ukraine, earlier this month.
Secretary of State Antony J. Blinken standing near a damaged residential building during his visit in Irpin, Ukraine, earlier this month.Credit...Sergiy Voloshyn/Reuters
Secretary of State Antony J. Blinken standing near a damaged residential building during his visit in Irpin, Ukraine, earlier this month.

Since the Russian invasion, the United States has given about 15 billion dollars to the Ukrainians.

Colin Kahl, the under secretary of defense for policy, said at a news conference last month thatVladimir Putin seems to believe that Russia can win the long game. He said that it was another Russian mistake.

Are the sources aware of the information? Why do they tell us? They have been reliable in the past. Is it possible to corroborate the information. The Times uses anonymous sources even though the questions are satisfactory. The reporter is aware of the source's identity.

Learn more about our process.

America and its allies must work to sustain Ukraine's brave defenders for the long haul according to Mr. Blinken.

He said that means the continued flow of capability.

The majority of that flow came from America.

Europe's support forUkraine has waned. In May and June the total of new commitments of military and financial aid from six of the largest European countries decreased.

Britain, Germany, Poland, France, Italy and Spain didn't make any new pledges in July.

The head of the team conducting the analysis said they were surprised that aid went to zero.

ImageResidents of Lysychansk picked up macaroni, oil and other food supplies from the Ukrainian military and police in June.
Residents of Lysychansk picked up macaroni, oil and other food supplies from the Ukrainian military and police in June.Credit...Tyler Hicks/The New York Times
Residents of Lysychansk picked up macaroni, oil and other food supplies from the Ukrainian military and police in June.

Some of the aid that has been announced in the past months has been sent in secret. He said that the new data suggested that material support for Ukraine could become scarce.

The financing stalemate is pointing more towardsUkrainian counteroffensives. It seems like preserving the status quo is more important than allowing Ukraine to do anything serious.

According to analysts, Germany has fallen short despite its rhetoric.

A senior fellow for international security at the German Institute for International and Security Affairs said he and other analysts were surprised by the Chancellor's pledge to raise military spending to support Ukraine.

The policy changes since then have not been as dramatic.

Critics say the German government hasn't done enough. The Leopard 2 main battle tanks are not going to be sent to Ukraine. The German government does not want Germany to be the first country to send tanks to Ukraine because the German military is too old.

The increase in defense funding was announced by Germany. It will not reach NATO's goal of having each member spend at least 2 percent of their GDP on defense each year, according to a forecast by the German Economic Institute.

The president of the American Institute for Contemporary German Studies said that Germany and other European countries would be in a better position to oppose Russia this winter.

ImageInside a governmental building in Lviv, stoves are piled up for winter.
Inside a governmental building in Lviv, stoves are piled up for winter.Credit...Diego Ibarra Sanchez for The New York Times
Inside a governmental building in Lviv, stoves are piled up for winter.

When you look at the public opinion in Germany, you see that they are ready to sacrifice in order to achieve the objectives of supporting Ukraine and preserving the European political order.

According to Christian Mlling, a research director at the German Council on Foreign Relations, he was optimistic that Europe would continue to present a united front against Russia.

Mr. Mlling said that it would be loud and dirty.

He said that they are talking about all these things publicly because that is how democracies do it.

Emily gave reporting.