I am a Chinese, but I never heard the so-called policy you have mentioned. Maybe it only exists in your HIV infected brain.Have you heard of Chinese policy called "Palm and five fingers"?
The Palm is Tibet and fingers are Nepal, Bhutan, Sikkim, Indian North East and Ladakh.
It knows that it can not gobble up Sikkim, Indian North East and Ladakh as they are part of Indian territory and are well protected.
Even Bhutan is well protected by Indian Army so the only state that is vulnerable to capture by China is Nepal.
If nepalese don't learn from fate on Tibetan, we will see nepalese begging for chinese mercy within 2 decades from now. Wake up.
And we don't want capture any land that do not belongs to us.Do you think Bhutan and Nepal are very important to us? I can't find any reason to occupy those area. Even India is not an idea target.We don't want to capture lands with dense population while lack of resources.
Maybe you have the aspirations to annex all the countries in south Asia.OK just do it,if you have the ability, but please find a better excuse other than protecting them from China's invasion.
By the way, it's wiser to be China's friend than to be China's enemy. You will understand it by seeing what our brother-country Pakistan get from China.Maybe the rail is a sign to show Nepal's determination to breakaway from your so-called protection.
Don't cheat yourself guy!
At least four large scale wars in south Asia involve india,but only one involves China.
Who threaten the peace of south Asia?
We are happy to supply real security and helps for Nepal and Bhutan if they have the will to go out of India's control.