Kolkata- Terming military might as the biggest deterrent to war, Prime Minister Narendra Modi said the defense forces will be modernized to ensure that "nobody casts an evil eye" on the nation. "Fighting a war and winning it has become less difficult these days. But a modern military is a guarantee against war. When we are capable, no one can dare challenge us," Modi said. "When people have a sense of our military capability, nobody will ever dare to cast an evil eye on our nation," he claimed.