Dehradun
it is in india but which city
The National Defence College of India is situated in New Delhi.
for self defence
The countries Minister of defence
No. Spain and France are the countries responsible for the defence of Andorra.
Defence diplomacy as an organizing concept originated with Western defence establishments, especially the UK Ministry of Defence, in the early post-Cold War period. It is generally understood as the peaceful application of different defence resources, including ship visits, military exercises, training and capacity-building as well as high-level interaction (e.g. at the Secretary/Minister of Defence level). Many countries employ defence diplomacy in support of their overall foreign policy; trying to build defence relationships that can further their current aims or that can be called upon in a crisis. Today, aspects of defence diplomacy are employed by countries with very different philosophies and intentions -- China uses defence diplomacy, as do Russia, India, Brazil and of course major Western/NATO powers (USA, UK, Canada, Australia). Defence diplomacy is distinct from "gunboat diplomacy", which is more intended to intimidate than to build relationships.
It is the connection between the attack and defence
The Army is the branch. In the US, it falls under the Department of Defence. In the UK, it falls under the Ministry of Defence. Other countries have similar offices.
It's the headquarters of the United States Department of Defence, the Federal Government agency which controls the armed forces. Most major decisions involving the military are made here. The building is situated just outside Washington DC in Arlington, Virginia.
Try the Maginot Line named after the the French Minister of defence in the 1930's
Countries will go to war if and when they believe they have a cause for war.Some countries have a policy of avoiding war, and will only fight in their own defence; while others will agressively use violence on a regular basis. Usually these agressors will try to justify their agression by claiming it to be self defence. Some other countries will fight in defense of other nations if they believe the cause is just.