Harbor attacked

First ,I want to  state that I looked for posts related to this issue and found none. Why is my harbor been attacked if I have a truce flag? I might understand the "pirates" attack, but not the regular attacks. I have been using up my truce flags since I'm not interested in daily wars and have been constantly attack attack by the same person. If the truce flags won't protect my towns, then I have no option but to stop playing.

Truces require preparation time.  Are you sure the truces were not in preparation mode?  There are 12 hours during which the truce is preparing that your towns are vulnerable.  You have the ability to defend and there are multiple threads about defensive capabilities and strategies on the forum. 

Here is a list to start:  http://www.totemtribe.com/find/?q=defending+your+towns

If truce preparation was started at 1700, then it would be finished by 0500. I was attacked at 0653. Therefor I was attacked while under truce.

If someone sends an army that takes too long to arrive and the town is preparing for truce, it is very possible if the timing is correct, for the army to arrive when preparation is over and the town is under truce.

In this case the attacking enemy army will arrive, enter the town (not sure if they actually enter and are visible from town square), and instantly leave. They won't do any damage or plunder any resources.

Do you have a battle report that shows the ships' attack? or did you only see them attack your town from worldmap view? in that case they just entered then left instantly since town was under truce.

I have a report

Do you remember which kind of flag you had when you got attacked?

Also, does the report say anything? any units got killed or anything got plundered?

I will comment on this, as I am the attacker. You were under truce preparation time and not under truce. 

The attacking army should be sent home once the truce is enacted and not have to waste the time it takes to arrive to discover that. Communications get to attacking armies (e.g. recall commands) so why does the time need to be wasted once a truce is activated. Seems to me that it should be an automatic recall.