Weapons
How do the weapons of this country compare with those of surrounding cities and countries? Have there been recent innovations that may upset the balance of power, or is everyone more or less equal?
Are magical weapons available? Can magic be used in warfare? In what ways? Are spells fast enough to be useful in hand-to-hand combat, or is magic more of a siege weapon, used only for long, slow things?
How has the presence of magic affected weapons technology? Can magic make weapons more effective? Do you have to do anything special to walls, armor, or weapons to make them better able to resist enemy spells?
How much has the presence of magic affected strategy and tactics in general? Is magic used primarily for intelligence gathering (spells of invisibility, scrying, etc.), or are there spells that are of use on the battlefield (summoning a demon to attack the enemy, casting fire storms at them, etc.)? If battlefield magic is possible, how can it be defended against?
How has the presence of magic affected weapons technology? Can an ordinary, non-weapon-type object be enchanted to make it extremely lethal (the Frying Pan of Death) or will this work properly only on things that are already weapons? Can ordinary objects be enchanted to make them (or their user) supremely good at something (the Frying Pan of Ultimate Gourmet Cooking, the Comb of No Bad Hair Days Ever)? How common and useful are such enchantments?
What personal weapons are available to anyone who can afford them? Are some considered “for nobles only” either by custom or by law? Are there laws forbidding certain classes from being armed at all?
What is the level of weapons technology? Are there guns, and if so, how sophisticated (flintlock, matchlock, rifle, Uzi)?
What major weapons of war are available (e.g., siege towers, catapults, cannon, A-bombs)?
What weapons and armor are standard for armies? Mercenaries? Nobility? Your average peasant trying to defend his/her home?
Are weapons, such as swords or pistols, a standard part of dress for any/all segments of society?
What are the accepted conventions of making war (e.g., only fight in winter when nobody is busy with crops; don’t make war on civilians; only certain kinds of weapons are available, etc.)?