The post-war 'Gandhaari Vilaap' is enough to make us rethink.
Emperor Ashoka became a Budhist follower after seeing the death and destruction in war. He understood that war cannot bring peace. Peace only can bring peace.
That is why our ancient Rishis taught us to chant and pray for 'Shanti'-peace. Peace not just for humans, but for plants and animals, and atmosphere too slogan of peace to the whole universe, will always try peaceful methods of solving issues. But if the enemy does not understand, then our leaders will become Krishna and our soldiers will become Arjunas and destroy the enemies. That becomes our duty to bring Dharma and destroy Adharma.
"Life is easier when you enjoy what you do"
Knowledge is power.
We have disputed issues with them and bilateral dialogue is the best way to find an amicable solution but unfortunately our disputes are still unresolved.
As far as China is concerned, it, apparently, doesn't believe in dialogue. Since 1962 it has been encroaching our land till date. Now it wants to have complete control over Galvan valley in Ladakh. Our government is trying to find a peaceful solution but China is quite aggressive and adamant on its illegal stand. If dialogue doesn't work then war is the last option.