When entering a country where they drive on the opposite side of the road how does the transition from lanes occur?

When entering a country where they drive on the opposite side of the road, drivers should first familiarize themselves with local traffic rules and signage. Upon crossing the border or entering the new area, they should carefully merge into the correct lane, typically by following road markings and observing other vehicles. It's crucial to stay alert and maintain a safe distance from other cars during this transition. Many countries also have signage to remind drivers to adjust to the opposite driving side.