We need to produce a complete article at least 900 words about why the Zimmermann telegram was important. Think about it: must follow the instructions: start directly with main content, no intro meta sentences. And use English (title English). Use H2 and H3 headings. Which means use bold for emphasis, italic for foreign terms or light emphasis. Because of that, use lists where appropriate. Here's the thing — must be at least 900 words. Must not include any meta opening sentences. Worth adding: must not explain that it's an article. Must start with first paragraph. On top of that, use markdown headings. Let's craft.
Structure:
