The House of Lords Economic Affairs Committee will question Lord West of Spithead on as part of their inquiry into the impact on the UK economy of Scottish independence.
They will question him about whether an independent Scotland end the UK's nuclear deterrent
Lord West was Chief of Naval Staff and First Sea Lord from 2002-2006. He was Parliamentary Under-Secretary of State (Security and Counter-Terrorism) at the Home Office 2007-10.
The Committee will question Lord West on issues including:
The feasibility of moving the UK's nuclear deterrent facilities from the Clyde to elsewhere in the UK and how much this might cost;
Whether he agrees with the Ministry of Defence's position not to plan for Scottish independence.
How many jobs in Scotland depend both directly and indirectly on the Trident nuclear programme.
If there would be any impact on the shipbuilding industry in Scotland as a result of independence
More top news
Eleven bus routes in the Scottish Borders could be cut by the company First Group, which wants to "focus resources" on other areas.
Organisers say they are saving money for next year, when they hope the event will take place on closed roads in the Borders.
The England all-rounder is "devastated" to be missing the rest of the series against Sri Lanka after he underwent knee surgery on Tuesday.