A pint, why that's nearly an armful!
As we eat our biccies and sip our tea after donating blood at the local NHS blood depository, we can imagine that it may be our blood that will be chosen to be sent out to Afghanistan and used to help treat a wounded soldier, perhaps even save his life.
How the blood and blood products make their way from our local church hall to the field hospital in Camp Bastion is described today in an article on the MoD's website. Central in the process is the work of the Royal Army Medical Corps' Blood Supply Team. They are all too aware when there's been a major operation in Helmand; they have to arrange the blood flow.
Another good reason to be a blood donor.
MoD: Blood team keeps UK Ops flowing worldwide