First of all, sorry for my English, I'll try to do my best in order to make you understand me.

I have some territories in my mape that include some islands, I tried to erase the connecting lines putting over the line a new structure with the same color of the background (sea blue). But when I upload my map, the line is still there, and I was looking for information in the wiki but there is no solution to my problem there, so I hope you can help me.

Thank you.

Can you post a link to your map?

Yes, here you have.
http://warlight.net/SinglePlayer?PreviewMap=29950

It's on Red Bonuses, in "Vigo", "O Morrazo" and "O Salnés" regions.
I put a circle over the lines, but I suppose that Warlight raise up the territories over everything. So it does not work...

I'm still adding details, like making best borders and adding the adjacents lands that aren't part of the map, but if you have some advices I would be very thankful to hear them.

Edited 2/19/2014 13:02:19

It's possible to have one player-controllable territory that spans several objects in Inkscape. This can create islands off the coast of a territory, which is used in several WarLight maps.

To accomplish this, first make all of the objects as individual territories. Then select them all at once, and select Path -> Union.

I typed in Islands on the WL-wiki and this is what I got immediatly. There is your solution. It shouldn`t be one path, but two. Unided and then named Territory_#

Thank you Min34, I have tried that before but I don't know why it didn't work, maybe I did something wrong, thank you.

Also, I would like to know if any of you know how to make borders look better without have to modify all of them point by point, what it is really hard to do.

Try this:
http://imgur.com/a/h1fnR#0

How exactly do you do it? When I do the same as you in the image, it cuts something different, it connect the both extremes of the line I did and keeps everything what was inside, and erase the other things...