At such a tragic time for Ukraine I hope the country where I have spent most of my adult life, and most of my career as an investor and entrepreneur can learn from the lessons of business: clear thinking is needed, corruption must be rooted out and, above all, we must all act for the benefit of all of the people of Ukraine - and we can only do this in a climate of negotiated peace.
I can't think of anywhere that would have been less appropriate as a venue for this week's Nato summit than the UK. A United Kingdom that within the next couple of weeks may become shatteringly disunited... Inward-looking, backward-looking, suspicious of its neighbours: everything that Nato is meant not to be. And this at a time when the world is a more dangerous place than it's been in decades. So why are Western leaders - because it's not just David Cameron - so dismally unable to confront the dangers?