> For the complete documentation index, see [llms.txt](https://pactoria-wiki.gitbook.io/pactoria-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pactoria-wiki.gitbook.io/pactoria-wiki/sieges/vulnerability-window.md). # Vulnerability Window Before diving into sieges and wars, it’s crucial to understand the concept of the **vulnerability window** in Pactoria.\ \ **What is a Vulnerability Window?**\ To accommodate players with varying schedules, Pactoria uses a system where towns define **8 one-hour blocks per week** as their vulnerability window. These are the times when your town is open to attack, and you’re expected to be ready to defend.\ \ We suggest choosing the hours that best fit your town's member activity time.
Before anything else, make sure to set your personal time zone using the `/nation timezone` command. Once your time zone is set, it’s time to define your town’s vulnerability hours. Use the `/siege vulnerability` command to access the **Vulnerability Screen**. Here’s how it works:\ The screen displays each hour of the week as colored squares. Use the arrow banners to scroll up and down through different hours.