The rumors began years ago. Tensions were building, and kept building. Last week negotiations broke down, and it was almost a relief. Neither side has crossed the neutral zone yet, but it's only a matter of time.
Your rapid promotion to Special Jounin is almost certainly a direct result of preparation for the war. Today, you meet your new team. Tomorrow, you ship out to the front lines. While you don't know what will happen, you know that the rest of your life hangs in the balance.