The threat to Britain’s global influence posed by a Labour government under Jeremy Corbyn

SIR – Domestic policy and the very real threat, already acknowledged by the shadow chancellor John McDonnell, of a run on the pound aside, a government led by Jeremy Corbyn would have significant and farreaching consequences for Britain’s security and global influence.

Mr Corbyn and his supporters have brought into the mainstream an anachronistic approach to Britain’s history and global role that threatens the continuity of our membership of international security alliances. Britain is a founding member of many of these, notably Nato.

Mr Corbyn has a public history of direct and indirect relationships with terrorist Islamist organisations, such as Hizbollah and Hamas, and the Labour Party as a whole has developed a foreign and security policy position that is totally contrary to the policies of our allies. This is especially the case with respect to Iran, Russia and Israel. Consequently, there is a very real prospect that a government led by Mr Corbyn would compromise Britain’s trustworthiness and reliability among our key allies.

Without this trust, we would almost certainly be frozen out of important security alliances, such as the Five Eyes. We would therefore not be trusted to receive the vital intelligence provided to us by our allies that helps us keep our people safe and supports our role in maintaining world peace. Colonel Tim Collins

Lt Gen Sir Simon Mayall

Sir John Jenkins

Sir Malcolm Rifkind

Tom Tugendhat

Dr Azeem Ibrahim

Research Professor, Strategic Studies Institute, US Army War College Brigadier Alistair Davis Colonel Richard Westley Lieutenant Colonel Richard A Scott Lieutenant Colonel P M Walker

SIR – I have lived through 30 years of conflict in Northern Ireland and in 1979 I witnessed at close quarters one of the worst IRA atrocities.

Following this, Tony Blair and the

Labour Party showed courage, skill and leadership in finally achieving a peace treaty in 1998. However, the current Labour Party and its leader, who has repeatedly failed to condemn outright the terrorist organisation that claimed responsibility for this heinous act, is not fit for the grave responsibility of government. MB Crozier

Warrenpoint, Co Down

SIR – On Friday I received the usual flier from my local Labour candidate asking for my vote.

There is not one word about the biggest issue of our time, namely Brexit. Do candidates take us for fools? John C Turner

Lea, Derbyshire

SIR – Under Margaret Thatcher’s leadership, I was a strong supporter of the Conservative Party.

I left the party in 1992 after 17 years, when John Major was floundering on the Maastricht treaty and considering joining the euro. I supported Nigel

Farage’s Ukip financially and politically, and we campaigned successfully in the European elections of 2014, winning outright and intensifying the pressure on David Cameron to hold to his promise of a referendum on our membership of the European Union. I supported Mr Farage in the Leave campaign in 2016, when we secured a historic victory. We have since had more than three years of turmoil due to Parliament not carrying out the people’s mandate.

It has become clear that only by achieving a parliamentary majority for the Conservative Party can we leave the EU and move on. At last we have in Boris Johnson a party leader who seems determined to get this great nation back to self-government. Let’s embrace a wider world and reconnect with our Commonwealth friends.

Provided that Mr Johnson sticks to his word and delivers Brexit next year, I will again become a significant donor to the Conservative Party. Paul Sykes

Harrogate, North Yorkshire