In a speech today, Prime Minister David Cameron will establish key dividing lines with Labour over policy and the direction of the coalition government.
He is to say:
We have identified, very clearly, our key areas of national weakness compared to the rest of the world.
One - our debt-fuelled, unbalanced economy. Two - our bloated welfare system. Three - our under-performing education system.
These are the priorities that define and drive our domestic agenda. A stronger economy. Welfare that works. A world-class education system. And we are pursuing them with ruthless ambition for everyone in this country.
Mr Cameron will cite changes to the planning system, the welfare shake-up and restrictions on non-EU migration among the coalition's achievements.
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Harry will also pay tribute to a British soldier killed by an elephant during anti-poaching operations in Malawi.
The family are making an official visit to South Africa.
The duke, who has admitted “I feel more myself in Africa”, is about to begin a tour of South Africa with the duchess and Archie.