How did the mountain ranges in northern and western regions indian remain independent for thousands of years?

India shares border with Pakistan, Nepal, Bhutan, Myanmar, China, Bangladesh and Sri Lanka. Despite, having tensions between some of its neighboring countries, India is holding its independence and freedom for quite long time. This is due to the western and northern mountain ranges which protect India from any kind of invasion and menace. For example Himalayas which is home to the largest mountains in the world. thus these mountain ranges make the attack perilous.

I hope it helps.

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

macon. i believe thats the answer

sorry if im wrong.