Dear John,

Today, the Prime Minister did what we’ve been urging him to do for years: commit to increasing Britain’s defence spending to 2.5% of GDP.

That is essential. With Vladimir Putin waging war on our continent, and Donald Trump in the White House cosying up to him, this is the most perilous moment for Europe in my lifetime.

Trump is threatening not only to betray the brave Ukrainian people, who have heroically resisted Putin’s war machine for the past three years, but also to undermine peace and security across Europe – including here in the UK.

In the face of that threat, the UK must step up and lead in Europe – and that has to include a big boost to defence spending. Today I urged the Prime Minister to go even further and bring all parties together to get to 3% of GDP as soon as possible.

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But while we agree with the Government on the urgent need to spend more on defence, we have a clear difference of opinion on how to fund it. We have set out a clear plan to raise that money by increasing the Digital Services Tax on the profits of social media firms and other tech giants.

But Labour – along with the Conservatives and Reform – say it should instead be paid for by cutting international development spending. That is a big mistake.

The Conservatives already cut back on international aid when they were in power, and that did enormous damage to the UK’s soft power around the world. Deeper cuts now – at the same time as Donald Trump and Elon Musk are gutting America’s aid programmes – will only leave a vacuum for Russia and China to fill, strengthening the hand of authoritarian regimes and further undermining our security.

I am immensely proud that the Liberal Democrats have led the way on both defence and international development. It was we who enshrined the 0.7% of national income target in law. And that aid has been transformative for millions of people in poverty and hunger. It has helped to tackle the spread of disease, and counter the harmful impacts of climate change.

At this time of great conflict and instability, the UK needs to strengthen both our Armed Forces and our soft power, including international aid. With your support, that is what the Liberal Democrats will keep fighting for.

John, if you believe in this too, will you join us today and help us in that fight?

Yours sincerely,

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