'UK must play peacemaker in US and Ukraine row', says defence secretary

The UK is trying to ease a sharp argument between Washington and Kyiv. Ukraine’s President Volodymyr Zelensky criticised a US agreement to buy millions of tonnes of diesel from Russia. He said the purchase would play into Russia’s hands and prolong the war. Donald Trump responded by saying Ukraine should get a new president.

The dispute combines energy, diplomacy and wartime support. Buying Russian diesel could provide Moscow with revenue, while Ukraine’s allies are trying to increase economic pressure on Russia. The disagreement also risks weakening unity among countries supporting Ukraine.

Defence Secretary Wes Streeting said the UK’s responsibility was to bring its friends back together. The government has stressed that US support for Ukraine remains substantial, including missile-defence procurement and diplomatic efforts. The UK also plans further action to constrain Russia’s war machine and maintain sanctions pressure.

For the UK to act as a peacemaker means using its relationships with both allies to reduce tension. It would encourage dialogue, clarify positions and help the United States and Ukraine keep working together. This matters because their disagreement could damage the united support that Ukraine depends on during the war.

Wes Streeting described the UK’s role as trying to “bring our friends back together”. Prime Minister Andy Burnham also expressed complete solidarity with Zelensky during a phone call. These actions show the UK is supporting Ukraine while seeking to prevent the dispute from becoming a wider break between allies.

The UK is not presenting the US diesel purchase as ending American support. Streeting pointed to US involvement in missile-defence procurement and diplomacy. Britain also wants maximum unity and continued pressure on Russia, including further sanctions and action against its war machine.

The article does not give an exact amount, but it says the United States agreed to secure millions of tonnes of diesel from Russia. That scale makes the purchase politically important. It could provide Russia with energy income while Western allies are trying to show that their pressure on Moscow remains strong.

The timing adds another layer. Diesel prices have risen because of disrupted global supplies, including the US-Israel war against Iran and the Russia-Ukraine conflict. With US midterm elections approaching, Trump is under pressure to reduce fuel prices and persuade voters to keep Republicans in control of Congress. Buying Russian fuel could therefore be presented as a response to domestic cost pressures.

The deal also follows a Russia sanctions law signed by Trump only a month earlier. The UK says sanctions will continue. Streeting urged people not to overstate the purchase’s effect on wider US support for Ukraine.

Ukraine’s concern is that energy purchases can support the country it is fighting. If Russia sells diesel, it receives money from the transaction. That revenue can help sustain the wider Russian state and its war effort, especially while Ukraine’s allies are trying to restrict Moscow’s income through sanctions.

Zelensky therefore said the US deal “plays into Russia’s hands” and would prolong the conflict. The article links this criticism to a broader effort by Ukraine’s allies to increase economic pressure on Russia. Their aim is to make the Russian war machine harder to maintain and to show that Western resolve has not weakened.

The UK accepts the concern but says the purchase should not be overstated. Streeting highlighted US missile-defence procurement and diplomatic efforts supporting Ukraine. Britain has also pledged tougher pressure on Russia. The central issue is whether fuel-cost relief can be balanced against the financial and political cost of buying from Moscow.

Elections in Ukraine have been suspended since Moscow’s incursion in 2022. The article explains that the country was placed under martial law, which is the stated reason elections have not taken place. This creates the political background to Trump’s demand that Ukraine get a new president.

The issue became central after Zelensky criticised the US diesel agreement with Russia. Trump responded by saying Zelensky had not done enough to end the war and suggested Ukraine should choose a new leader. His comments therefore challenged Ukraine’s leadership while elections remain suspended because of wartime conditions.

The article does not provide a date for new elections or describe a timetable for ending martial law. Instead, it reports that Prime Minister Andy Burnham expressed complete solidarity with Zelensky and planned to meet him. The UK’s immediate focus is reducing tensions between Kyiv and Washington and keeping allies united.

Sanctions and energy purchases affect Russia in opposite ways. Sanctions are designed to restrict the oil and gas revenues that help fund Moscow’s war. Energy purchases can create income for Russia, especially when buyers purchase large quantities of fuel. The article therefore presents the diesel agreement as potentially weakening economic pressure.

A concrete example is the Russia sanctions law Trump signed one month before the diesel deal. The law aimed to clamp down on oil and gas revenues. The UK has also pledged to maintain tough sanctions and take further action to constrain the Russian war machine. Buying Russian diesel could work against that pressure by paying Russia for energy.

The wider effect depends on how much the purchase matters compared with other support. Streeting said the impact should not be overstated, pointing to US missile-defence procurement and diplomatic efforts. The UK still wants maximum unity and says Western resolve against Russia remains absolute.

Energy prices become political because people feel them through fuel, heating and wider living costs. When prices rise, governments face pressure to provide relief. Leaders may then change energy policy, including decisions about where to buy fuel, even when those choices affect foreign policy and relations with other countries.

The article says diesel prices have soared because global supplies were disrupted by the US-Israel war against Iran and the Russia-Ukraine conflict. Trump faces US midterm elections next month and wants lower fuel prices to help keep Republicans in control of Congress. Streeting said cost of living and energy prices were major pressures on leaders.

That domestic pressure helps explain the political importance of the Russian diesel deal. It may ease supply concerns, but it can also support Russia financially and challenge allied sanctions. The UK therefore wants to balance economic pressure on Moscow with continued cooperation among Ukraine’s supporters.