Towards the start of the Napoleonic Wars several towers received additional reinforcement in the form of batteries at their bases.
The States were of the opinion that the project was of such importance that if necessary they would exercise eminent domain, "...notwithstanding any Clameur de haro or any opposition whatsoever...".
[1] As a result, at the onset of the Napoleonic Wars, and during General Sir John Doyle's tenure as Lieutenant Governor (1803-1816), a number of the towers received supporting batteries, either at their base, or nearby.
The Petit Bôt Tower provided one example; however, its recent restoration returned it to its pre-World War II form.
Captain Frederick Bassett, RE, the Commanding Engineer in the Channel Islands, oversaw the towers' construction.
[2] They were to be built to the design of the Jersey round towers, but in fact deviated in a number of ways.