Remembering all the country names in the world can be a daunting task, but there are a few strategies you can use to make it easier:

1. Group countries by region: Instead of trying to remember all countries at once, try breaking them down by region. This way, you can focus on one area at a time and build on your knowledge as you go.
2. Use mnemonics: Mnemonics are memory aids that can help you remember lists of information. For example, you could create a mnemonic to remember the countries in Africa, such as “Kenya, Uganda, Tanzania” as “KUT.”
3. Associate with images: Try to associate each country with an image or symbol that will help you remember its name. For example, you could associate France with the Eiffel Tower, or Australia with a kangaroo.
4. Make flashcards: Make flashcards with a country’s name on one side and its capital city and flag on the other.
5. Practice regularly: Make it a habit of reviewing the countries list regularly, you can dedicate a small amount of time each day to studying the list of countries.
6. Learn with games: Try using games such as matching countries with their flags, matching countries with their capitals, etc.
7. Use online resources: There are many online resources available to help you learn about countries and their capitals, such as Quizlet, etc.
8. Try to relate the countries with their culture, food, etc. This will help you to remember the countries easily.

Remember that memorizing all the countries in the world takes time and practice. Consistency is key, and with time and effort, you’ll be able to remember them all.