It may well have seemed to the parents of Laperouse at this time that
fine prospects lay before a gallant young gentleman who should enter
the Marine. There was for the moment peace between France and England.
A truce had been made by the treaty of Aix-la-Chapelle in 1748. But
everybody knew that there would be war again soon. Both countries were
struggling for the mastery in India and in North America. The sense of
rivalry was strong. Jealousies were fierce on both sides. In India, the
French power was wielded, and ever more and more extended, by the
brilliant Governor Dupleix; whilst in the British possessions the
rising influence was that of the dashing, audacious Clive. In North
America the French were scheming to push their dominion down the
Ohio-Mississippi Valley from Canada to the Gulf of Mexico, in
the rear of the line of British colonies planted on the seaboard from
the Gulf of St. Lawrence to Florida. The colonists were determined to
prevent them; and a young man named George Washington, who afterwards
became very famous, first rose into prominence in a series of tough
struggles to thwart the French designs. The points of collision between
the two nations were so sharp, feeling on either side was so bitter,
the contending interests were so incapable of being reconciled, that it
was plain to all that another great war was bound to break out, and
that sea power would play a very important part in the issue. The young
Laperouse wanted to go to sea, and his father wanted him to distinguish
himself and confer lustre on his name. The choice of a calling for him,
therefore, suited all the parties concerned.

He was a boy of fifteen when, in November, 1756, he entered the Marine
service as a royal cadet. He had not long to wait before tasting
"delight of battle," for the expected war was declared in May, and
before he was much older he was in the thick of it.