```html
Link to YouTube Video
Watch This Video
Click here to watch on YouTube
```
### Explanation:
- **``**: This is the doctype declaration and it tells the browser that this is an HTML5 document.
- **Anchor (`` tag)**:
- **`href="https://www.youtube.com/watch?v=YOUR_VIDEO_ID"`**: Replace `YOUR_VIDEO_ID` with the actual video ID that you want to link to. Each YouTube video URL contains a unique video ID, you can get this from the full URL of a video.
- **`target="_blank"`**: This will open the link in a new tab, allowing the user to have your page open while checking the video.
To update with a specific video, simply replace `YOUR_VIDEO_ID` in the link with the part of the YouTube URL that contains the video ID (it's typically after `v=` in the video URL).
For instance, if the full YouTube URL is `https://www.youtube.com/watch?v=dQw4w9WgXcQ`, use `dQw4w9WgXcQ` as the `YOUR_VIDEO_ID`.