Which preposition to use with colonisers

in Occurrences 1%

I shall end by thinking that we are the worst colonisers in the Eastern world, as we neither make ourselves rich, nor the governed happy.

of Occurrences 1%

Day after day marched the bearded host,farmers with ploughs, mechanics with tools, builders, craftsmen, woodsmen, all the needed factors of a colony, led by the greatest coloniser of modern times, their one great aim being to make ready some spot in the wilderness for the second advent of the Messiah.

Which preposition to use with  colonisers