The commander of the main Dutch naval port of Den Helder , Rear-Admiral Hoyte Jolles , concluded that his base , with a naval garrison of 10,000 , its own air service , and extensive land defences , should continue to resist also .
The commander of the main Dutch naval port of Den Helder , Rear-Admiral Hoyte Jolles , decided that his base , with 10,000 troops , its own air service , and land defences , should continue to fight .