New category - Defense

[Rxfa]

I was looking to add Tekever, a Portuguese company that builds Unmanned Aerial Systems and satellites mainly for maritime surveillance and intelligence/defense purposes, You can check their website here.

While there's a "Sea" category, I would argue that this company's primary focus on intelligence and defense makes it a better fit in a more specialized, new category. For that reason, I suggest creating a new category such as "Defense" or "Intelligence and Surveillance", to better reflect this company and others in a similar position.