In an era of globalization, visa-free travel has become increasingly popular as countries try to encourage economic growth, cultural exchange, and diplomatic relations. Passport strength is vital in a traveler's ability to access countries. Removing visa requirements can promote tourism, facilitate business, boost the economy, and promote cross-cultural understanding. However, being "open" also entails risks. National security, illegal immigration, economic challenges, and health concerns are among the various issues that countries may have conflicting views on. These issues provide valid reasons as to why visas are required before visiting. Countries consider these benefits and risks before deciding whether to allow visa-free travel.