Which Nation has India occupied. How India became aggressive. India has not launched a war against any country I guess. While you have launched war against India, Vietnam, Russia, Tajikistan, North Korea (could not remember about North Korea) and off course Tibet. Although I don't wanted to bring china, until you mention India as aggressive.
If you Kashmir as Nation, than three nations have occupied it which are India, China and Pakistan. Before saying anything give that land to them, than talk.
About Pakistan stats : War Launched - 4 times, Created tense situation - A lot of time.