White phosphorus, it is a chemical that catches fire on contact with oxygen.
Both the M8 and M18 smoke grenades used by the US Military generate enough heat to ignite dry grass and leaves. While they do not generate the heat of a White Phosphorus grenade, they can start a fire. The Field Manual for grenades specifically warns of the fire hazard.
Yes, hand grenades were widely used in WW1
Grenades were used to blow things up a little bit ovious that one
Grenades are used when you know where the enemy is but they don't know where you are so they make the perfect surprise.
You have to press the Lt button.
The Byzantine Empire used fire bombs vaguely similar to grenades as early as the late 700's AD. The first exploding grenades that were similar to modern ones were invented in China in the 900's.
Press R1 to fire your gun and L2 to throw grenades.
Press the "G" key on your keyboard.
They made hand grenades out of jam tin cans and used them to fight the Turks. They also used an evacuating rifle that used water drops to fire the bullet whilst they evacuated.
No country uses grenades as their primary arm - rifles are the primary armament of any military.
Tin and explosive power that is no longer used.
They can be thrown at the target, or used to make boobytraps.