Which board game released in the 90's involved medieval combat?
You are most likely referring to Weapons &amp; Warriors. Here is Board James playing it. The rulebook can be found here.

The game had several expansions. It contained cannons and ballista. You rolled dice to move your soldiers forward, which allowed you to move your firing pieces forward or fire your weapons.


Weapons &amp; Warriors: Castle Siege Game (1994)
Weapons &amp; Warriors: Pirate Battle (1996)
Weapons &amp; Warriors: Power Catapult Set (1994)
Weapons &amp; Warriors: Star Fort (1994)
Weapons &amp; Warriors - Lashout Launcher (1994)
Weapons &amp; Warriors: Cavalry Attack Set (1994)
Weapons &amp; Warriors: Weapon Pack 2 (1995)
Weapons &amp; Warriors Castle Storm / Pirate Clash Game (1997)