the crusaders could still be shipped to the holy land, they said, if they would agree to stop on the way and subdue one or two rebellious venetian colonies on the dalmatian coast, thus securing the republic's trade routes through the adriatic.

Make this proper case
The Crusaders could still be shipped to the Holy Land, they said, if they would agree to stop on the way and subdue one or two rebellious Venetian colonies on the Dalmatian coast, thus securing the Republic's trade routes through the Adriatic.