Dave_HUNI forgot to add that in my post, that is my mistake. Correction:
Blue player did not see that marletto tower has a guard in front of it, and as such, it does not violate rules. Game should continue normally, with blue player defeating the guard immediately afterwards, and stepping back on marletto tower as it should be done with naga bank, cyclops stockpile etc...
As i understand, Sector hadn't made this step back to Marletto, and this is the violence. So, the truth is on Toga's side anyway.