Can you help me understand why "the" is required here?

In English, there is a subtle difference between "uniforms" and "the uniforms". Does Italian lack that nuance? How do I know when I should use "the" when we wouldn't use it in English?

In English, there is a subtle difference between "uniforms" and "the uniforms". Does Italian lack that nuance? How do I know when I should use "the" when we wouldn't use it in English?