12:52 Brendan O'Hara (SNP)

Everyone accepts that the world has never been a more uncertain place. The world is changing and the threats are changing. They are most certainly not as they were 30 or 40 years ago. Many military strategists recognise that the changes have to be prepared for accordingly. They have identified important threats. There is mass migration into mega cities; by 2040, it is thought that 70% of the world will be urbanised. The great movement of people because of climate change and the search for natural resources, such as water and energy, will cause huge global problems too.

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