Wheres the rules

i noticed people get more troops if they have more territory's,i dont mean they dominate a continent,I mean like u get 4 troops for 15 and 5 troops for 17 or w.e. Where can I find the rules that explains this in detail?

There is a bonus for territories.
It calculates total territories divided by three.
So if a player has 12 territories, 12/3 = 4. He will add a total of 4 troops. (remainders dont count)
But every player still adds at least 3 troops every turn. So if a player has say 2 territories, that player will still add 3 troops.

Your reinforcements are calculated using the following formula:

max(3, floor(territories / 3)) + region bonuses

What this means is the following:
- Your base reinforcements are equal to the amount of territories you own divided by three, rounded down. So for example 12 territories gives you +4 and 17 territories gives you +5.
- If you have less than 9 territories, you still get +3.
- If you own all territories of a region at the start of your turn, you get bonuses for these as well. The bonuses for these region can usually be found in the minimap.

so to answer your question tick,go to the information link above to see all the rules

There is an information link towards the top left of the page.

Then go to glossary there and look up reinforcements.