The Russian word that is most frequently spoken throughout the world isn't Lenin, gulag or perestroika, it's 'Kalashnikov'. The reason for this is simple: there are 80 million Kalashnikovs in circulation on five continents. Once invented, the AK-47 assault rifle became the most widely used weapon in the world: from Vietnam to Palestine, from Cuba to Iraq, it was at the heart of conflicts and struggles everywhere. It is the only firearm that has ever been depicted on a national flag - that of Mozambique, where it symbolizes liberation.

Mikhail Kalashnikov himself, who was born in 1919, here...

The Russian word that is most frequently spoken throughout the world isn't Lenin, gulag or perestroika, it's 'Kalashnikov'. The reason for this is simple: there are 80 million Kalashnikovs in circulation on five continents. Once invented, the AK-47 assault rifle became the most widely used weapon in the world: from Vietnam to Palestine, from Cuba to Iraq, it was at the heart of conflicts and struggles everywhere. It is the only firearm that has ever been depicted on a national flag - that of Mozambique, where it symbolizes liberation.

Mikhail Kalashnikov himself, who was born in 1919, here...