Minecraft wiki entry for Defeating_a_village_raid, associated text: 1 Raid basics
2 Equipment
2.1 Optional equipment
3 Preparation
3.1 Preparing the village
3.1.1 Walling off the village
3.1.2 Setting traps
3.1.3 Blocking villager doorways
3.1.4 Ringing the bell to get all villagers back into their houses
3.1.5 Iron Golems
3.2 Preparing yourself
3.2.1 Equipment
3.2.2 Good spawn point in the village
3.2.3 Milk
3.2.4 Food
3.2.5 Healing from golden apples and enchanted golden apples
3.2.6 Potions
4 Starting the raid
5 Defeating the raid
5.1 Post-raid
5.2 Waves
5.3 Traps
5.3.1 Water bucket trap
5.3.2 Lava trap
5.3.3 Cobweb trap
6 Notes