Acting Permanent Under-Secretary Tom McKane said of the plans to cut up to a quarter of senior military and civilian posts in the Armed Forces: "All parts of defence are being restructured as we transform the way the Ministry of Defence does business, and head office is no exception.
"A smaller head office focused on strategic direction and policy, which hands more responsibility to the frontline commands, allows for a better-run organisation."
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The Westminster terror attack dominates the front pages of Thursday's newspapers.
A timeline of exactly what happened.