[mongol]

Robbery also includes threat of violence, or actual violence.

[Broken_Hippo]

It doesn't Have to include threats of violence or acts of violence: It simply usually does.

It does Always include theft of goods, though. This man wasn't stealing things, but rather trying to get his own cash. Despite the violence, this wasn't robbery.

[ClumsyPilot]

so does assault and battery, but they are both separate and distinct offenses