tenses - "Would" vs "Will"

In the following context is the word 'would' correct at all or do we have to use 'will'?

Some countries grow hashish, and sometimes they would smuggle it to other countries.

Some countries grow hashish, and sometimes they will smuggle it to other countries.

What is the difference between these two vs the present simple form?

Answer

Would makes it sound past tense. Also, "they" doesn't sound right, because countries don't smuggle, people do.

I prefer either:

Some countries grow hashish; sometimes it gets smuggled it to other
countries.

or:

Some countries grew hashish; sometimes it would be smuggled it to
other countries.

or even:

Some countries grow hashish, which is sometimes smuggled into other nations.