Uzbekistan, officially the Republic of Uzbekistan, is a doubly landlocked country located in Central Asia. It is surrounded by five countries: Kazakhstan to the north, Kyrgyzstan to the northeast, Tajikistan to the southeast, Afghanistan to the south, and Turkmenistan to the southwest, making it one of only two doubly landlocked countries on Earth, the other being Liechtenstein. Uzbekistan is part of the Turkic world, as well as a member of the Organization of Turkic States. Uzbek is the majority language, while Russian is widely spoken and understood. Islam is the predominant religion, and most Uzbeks are Sunni Muslims.

Tajikistan, officially the Republic of Tajikistan, is a landlocked country in Central Asia. Dushanbe is the capital and most populous city. Tajikistan is bordered by Afghanistan to the south, Uzbekistan to the west, Kyrgyzstan to the north, and China to the east. It is separated from Pakistan by Afghanistan's Wakhan Corridor.