Letter: Diplomacy the only route After fighting in Afghanistan for 20 years and spending more than 1.5 trillion dollars and accomplishing nothing but starvation for millions and political instability in the country, the withdrawal was the correct step. What did the United States learn from this terrible mistake, which cost the American taxpayer $300 million a day for 20 years? It seems that our current government had not learned anything to avoid making the same mistake again in Ukraine. Let’s…