Turtle Fleet is a ROS 2 package designed to demonstrate basic ROS 2 concepts including topics, publishers, and subscribers through a simple turtlesim simulation. The package contains two main nodes: turtle_commander and turtle_monitor. The turtle_commander node controls a turtle by publishing random velocities, while the turtle_monitor node subscribes to these commands and replicates them for a second turtle, effectively making the second turtle follow the movements of the first.