SIR – At the end of May, I am joining serving and former soldiers and two other MPs in trying to tackle one of the world’s highest volcanoes, Cotopaxi in Ecuador, at 19,347ft.

I am taking on this tough challenge to raise awareness of the Royal British Legion Battle Back Centre, the national rehabilitation centre which provides adaptive sports and adventurous training for injured servicemen and women.

So please help me and the team with our big challenge and support the Royal British Legion Battle Back Centre and its important work by donating either at justgiving.com/TRBLEcuador2014 or by sending a cheque payable to the Royal British Legion to Greg Mulholland MP, Battle Back Cotopaxi Challenge, 12 Holt Park Centre, Holt Road, Leeds LS16 7SR.

Thank you, and I will provide expedition updates from May 28 on my website and Twitter.

Greg Mulholland, MP for Leeds North West