The image is a poster with a white background and a blue border. It contains four numbered sections, each accompanied by a corresponding icon or diagram. Here is a detailed description of each section:

1. **Section 1**: This section features an icon of a person holding a book. The text below the icon reads "3. Truong hop xac dinh" which translates to "3. Training of the defense."

2. **Section 2**: This section has an icon of a person holding a gun. The text below the icon reads "4. Truong hop loai tru" which translates to "4. Training of the attack."

The poster seems to be related to military training, specifically focusing on defense and attack training.