Final answer:
The British naval blockade prevented the French navy from defending key territories like the Ohio Valley and restricted their access to trade and resources, ultimately leading to their defeat.
Step-by-step explanation:
The British naval blockade helped defeat the French during various conflicts, such as the French and Indian War. It prevented the French navy from defending important regions like the Ohio Valley, restricting their ability to reinforce or resupply their troops effectively. Additionally, the blockade limited French access to trade and resources, contributing to their eventual defeat.
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