annexe & final about Lachine's massacre;
A MASSACRE of Men Women Children (100 + 120 prisoners) killed by firearms (???) by the MohawksWarriors against the settlement of Fort-Rolland (Lachine west part of Montréal nowadays/ a Major « check-point » to the Ottawais River « highway » to the Great Lakes, oui ?...but also and MOSTLY because this is the main ‘route’ for the Second Expedition to Mississippi and Ohio Valley, oui ?  
(You knew the Great Ships couldn't go further than Montréal 
Great Ships couldn't go to the Greats Lakes because of the Lachine rapids (see Google))