Russia exported approximately $15 billion worth of weapons to 53 countries around the world in 2017, AFP reported in February, citing Alexander Mikheev, the CEO of Rosoboronexport.

About $6.14 billion of that $15 billion was of major weaponry, including military aircraft, ships, armored vehicles, guided munitions, and more, according to the Stockholm International Peace Research Institute.

SIPRI is an independent research group that collects detailed data on major weapons transfers, including the countries they're exported to and imported from. Nearly $4 billion of the $6.14 billion exported was of military aircraft, SIPRI reported.

While SIPRI's data doesn't include unguided munitions, small arms, and other equipment, it's "pretty representative" of which countries are buying the most weaponry as a whole from Russia, Siemon Wezeman, a senior researcher at SIPRI, told Business Insider.

Here are the 10 countries that bought the most major weaponry from Russia in 2017: