France, July 10 -- French President Emmanuel Macron wraps up a three-day state visit to Britain on Thursday with a summit aiming to "reboot" defence ties with a focus on joint missile development and nuclear co-operation.

Macron and UK Prime Minister Keir Starmer are also expected to discuss maintaining support for Ukraine and curbing undocumented cross-Channel immigration.

Ahead of the summit, which follows two days of events spanning pomp and politics, trade and culture, France and Britain announced their "defence relationship" will be "refreshed".

They will order more Storm Shadow cruise missiles- long-range, air-launched weapons jointly developed by the allies- while stepping up work on a replacement system.

The missiles have been...