JEREMY Corbyn's call to award £1 billion worth of contracts to UK shipbuilders ("Corbyn: Keep £1bn Navy shipbuilding in UK", The Herald, May 11) is the sort of common sense support we should be regularly hearing from our politicians. Govan was once at the heart of the global shipbuilding industry as the cutting-edge leader and innovator. Such contracts would secure thousands of jobs and expertise within Glasgow.

Unfortunately it may not be possible for a government of any party to make a guarantee. The Treaty on the Functioning of the European Union means that all EU shipyards can tender for the work. The EU Defence Directive allows for an exemption if the work that may "undermine essential security interests" but the recent Tide-class ships failed this test and were built elsewhere. Leaving the EU will allow for all naval shipbuilding to return to the UK.

Tom Walker,

39 Fountain Place,

Loanhead, Midlothian.