BBC News article

 

Key Harpoon relevant points:

• UK to order 9 P-8 Poseidons to replaced scrapped Nimrod fleet
• Fewer Type 26 frigates
• OSD for Typhoons extended to 2040, new ground attack capabilities and what sounds like AESA radar
• 138 F-35Bs, 24 by 2023 (up from 8 originally)
• 'Successor' sub i.e. Vanguard SSBN replacement cost to go up to £30bn

Did the UK just come into a pot of money?

Not so much; some of this going to be paid for by cuts to police budgets and tax credits.

Or not as the case may be.