Which countries in the world recognize dual citizenship?

Dual nationality is more than two! Take two, take three, or more! Canada is one of them, which the United States secretly admits (unknown). Dual citizenship is a way that many countries in the world generally recognize by default. The United States, Britain, France, Canada, Australia and many other European and American countries respect it. Most countries do not recognize that their citizens lose their nationality by acquiring foreign nationality. For example, no matter how French people acquire foreign nationality, France still regards it as its own nationality.

Argentina recognizes dual nationality and has signed dual nationality agreements with Spain, the Philippines, Italy and other countries. India, Indonesia and other developing countries have successively introduced dual nationality laws.

China does not recognize dual citizenship!