Ukraine must be 'catalyst' for new UK approach to global security, says Liz Truss

New approach must recognise 'return of geopolitics', UK foreign secretary will say in Mansion House speech

Foreign Secretary Liz Truss at the Anzac Day service at Westminster Abbey, London, on April 25. PA

Live updates: follow the latest news on Russia-Ukraine

The West must prepare for the “long haul” to ensure Russia’s defeat in Ukraine, Foreign Secretary Liz Truss will say as she calls for allies to increase defence spending and supply tanks and warplanes to Kyiv.

In a major speech, Ms Truss will say Vladimir Putin’s invasion of Ukraine shows the need for a shake-up of the international structures that failed to prevent Russia’s actions, according to released excerpts of her speech.

She will say western allies must impose even tougher economic sanctions to increase Russia’s isolation, including cutting off oil and gas imports “once and for all”.

“There must be nowhere for Putin to go to fund this appalling war,” she will say at Mansion House in the City of London on Wednesday night.

“We cannot be complacent. The fate of Ukraine remains in the balance.

“And let’s be clear – if Putin succeeds there will be untold further misery across Europe and terrible consequences across the globe. We would never feel safe again.

“So we must be prepared for the long haul and double down on our support for Ukraine. Heavy weapons, tanks, aeroplanes – digging deep into our inventories, ramping up production. We need to do all of this.”

UN Secretary General Antonio Guterres visits Borodyanka, near Kyiv, where Russian forces are accused of killing civilians. AFP

Children play in the wreckage of a Russian armoured vehicle in Lukashivka, Chernihiv region, northern Ukraine. The village has been retaken by Ukrainian forces. EPA

A cyclist passes a destroyed building in Derhachi village, near besieged city Kharkiv, in north-eastern Ukraine. AFP

Burnt-out wreckage of a tank in Kolychivka village, Chernihiv region, northern Ukraine. EPA

A Ukrainian flag flies in a park in Kramatorsk, Donetsk region, eastern Ukraine. A rocket attack on the city railway station earlier in April killed at least 50 people. AFP

Russian President Vladimir Putin addresses a meeting of MPs in St Petersburg. EPA

Youngsters Faddei and Oleksandr play in front of a church damaged during Russia's invasion of Ukraine, in the Chernihiv region. Reuters

A demonstrator turns emotional as she attends a rally in Kyiv demanding a humanitarian corridor to rescue civilians from Mariupol. Reuters

A Ukrainian Sukhoi Su-25 releases decoy flares as it provides air support to Ukrainian ground forces near central city of Yampil. AFP

An officer from National Guard of Ukraine surveys weapons left behind by Russian troops in Chernobyl. AFP

Mr Putin attends a meeting with UN Secretary General Antonio Guterres in Moscow. Reuters

Members of a team from the International Atomic Energy Agency carry equipment as they arrive at the Chernobyl nuclear power plant, in Chernobyl, Ukraine. AP

Ukrainian troops fire rockets from the city of Popasna, near Luhansk. EPA

Lithuanian musician Darius Mazintas plays a piano in front of the Central House of Culture destroyed during Russia's invasion, in the town of Irpin, outside Kyiv. Reuters

Ukrainian refugees Julia, second left, 32, and Miroslava, left, 11, walk away with relatives who received them after they crossed into Poland from Ukraine at the Dorohusk border. AFP

Russian Foreign Minister Sergey Lavrov meets Mr Guterres in Moscow. AFP

US Chairman of the Joint Chiefs of Staff Gen Mark Milley, left, US Secretary of Defence Lloyd Austin, second left, and Ukrainian Minister of Defence Oleksii Reznikov, right, attend the Ukraine Security Consultative Group meeting at Ramstein airbase in Ramstein-Miesenbach, Germany. Getty Images

Smoke rises from an oil terminal hit by fire in Bryansk, Russia. AP

People take pictures by the wreckage of a Russian military vehicle, in the village of Rusaniv, Kyiv region. Reuters

Smoke rises above the Azovstal Iron and Steel Works plant amid fighting in Mariupol, Ukraine. Reuters

People carry a large Ukrainian flag as they attend a rally to mark the 77th anniversary of Liberation Day in Milan, Italy. The day remembers Italians who fought against the Nazis and Mussolini's troops during the Second World War. EPA

A Ukrainian soldier looks at a Russian ballistic missile's booster stage that fell in a field in Bohodarove, eastern Ukraine. AFP

People watch as a residential building burns after Russian bombardment in Kharkiv, Ukraine. AP

Ukraine's President Volodymyr Zelenskyy meets US Secretary of State Antony Blinken and US Defence Secretary Lloyd Austin. Reuters

Russian President Vladimir Putin attends the Orthodox Easter service at the Cathedral of Christ the Saviour in Moscow. EPA

A young girl in front of people carrying a huge Ukrainian flag during a peaceful demonstration entitled 'Solidarity with Ukraine' in Krakow, Poland. Reuters

A boy stands next to a wrecked vehicle in front of an apartment damaged during the conflict in the southern port city of Mariupol. Reuters

This satellite image from Planet Labs PBC shows damage at the Azovstal steelworks in Mariupol, Ukraine. AP

A Ukrainian man rides in front of a destroyed building in Kharkiv which had been shelled by the Russians. EPA

A Ukrainian Territorial Defence fighter in a shelter with an Easter Cake near Kharkiv. Ukrainians mark Orthodox Easter today. EPA

Residents receive Easter cakes and apples handed out by pro-Russian troops on Easter Day at the Svyato-Troitsky Church in the southern port city of Mariupol. Reuters

A woman photographs the scene of yesterday's shelling in the southern Ukraine city of Odesa. Eight people were killed, including a three-month child, and about 20 were wounded. EPA

A military chaplain blesses Ukrainian soldiers on the occasion of Orthodox Easter not far from the city of Izyum in Kharkiv. EPA

An internally displaced man walks with dogs in the Palace of Culture, which was damaged by shelling in Rubizhne, eastern Ukraine. AFP

Tulips grow next to a building destroyed by shelling in Rubizhne. AFP

Internally displaced people wait to receive food inside a factory that has been turned into a shelter, in Severodonetsk. AFP

Members of the Ukrainian Red Cross carry a woman, 92, to an ambulance from a bunker at a factory in Severodonetsk. AFP

Ambulance workers move an injured Ukrainian serviceman to a hospital in Donetsk. AP

A woman sits inside a subway station that has been turned into a shelter, on the outskirts of second largest Ukrainian city, Kharkiv. AFP

Residents shelter in a subway station in Kharkiv. AFP

Anastasiya Kryvoho attends a candlelight vigil for Ukraine on the Orthodox Holy Saturday, in Toronto, Canada. Reuters

Ukrainian President Volodymyr Zelenskyy addresses a press conference with international media in an underground metro station in Kyiv. AFP

Firefighters work at the scene of a fire after shelling in Kharkiv, Ukraine. EPA

A family from Myrne, a town occupied by Russian forces, wait to register with police at an evacuation point for people fleeing from Mariupol, Melitopol and surrounding towns. Getty Images

Oleksandr, 25, meets his parents Olga, 49, and Oleksandr, 50, who fled from the Russian-occupied village of Lyubimivka, at the evacuation point in Zaporizhzhia. EPA

Residents walk near a damaged military vehicle in an area controlled by Russian-backed separatist forces in Mariupol. AP

A heavily damaged apartment building in Horenka. Getty Images

Residents wrapped in blankets stand near their houses damaged by Russian shelling in Odesa. AP

A Ukrainian flag is installed on top of a gob pile in Lysychans, eastern Ukraine. AFP

A Ukrainian soldier rests at a checkpoint in Severodonetsk. AFP

Russian Foreign Minister, Sergey Lavrov has warned that weapons supplied by western countries “will be a legitimate target” and that Nato has effectively “entered into a war with Russia through proxies”.

The UK was one of only eight Nato members to meet the alliance’s goal of spending at least 2 per cent of gross domestic product on defence in 2021.

Ms Truss will say there has been a “generation of underinvestment” in the West and the 2 per cent target should be “a floor, not a ceiling”.

The Russian invasion shows “the architecture that was designed to guarantee peace and prosperity has failed Ukraine”.

Russia’s position as a veto-wielding member of the UN Security Council has limited the world body's ability to censure the Putin regime.

Ms Truss will set out a new approach that recognises “we’re seeing the return of geopolitics”.

The UK and its allies must “reboot, recast and remodel our approach to deterring aggressors” and the war in Ukraine “has to be a catalyst for wider change”.

“Our new approach will be based on three areas: military strength, economic security and deeper global alliances.

“I want to live in a world where free nations are assertive and in the ascendant … where freedom and democracy are strengthened through a network of economic and security partnerships … where aggressors are contained and moving toward a better path.

“This is the long-term prize: a new era of peace, security and prosperity.”

Ms Truss wants to see the G7 — the UK, US, Canada, Japan, France, Germany and Italy — playing a stronger role on the world stage.

She also wants to forge a stronger network of bilateral security and economic partnerships.

“Liz Truss’s speech appears to be an admission of failure after more than a decade of decline,” said the British shadow foreign secretary, David Lammy.

“The Conservatives wrongly de-emphasised European security in the Integrated Review, made deep cuts to the British army over many years, gave up soft power through cutting development, and hurt alliances with Europe and the United States including by risking peace in Northern Ireland."