History of Hyderabad : After collpase of Vijayanagara empire in 16th century, Hyderabad rulers took entire Andhra (present AP) into their control and ruled till early 19th century.
For almost 250 years, present telangana and andhra were ruled by one king.
British wanted port areas of machilipatnam, kakinada etc to spread their trade and transfer looted material through ships but Mir Nizam Ali Khan (Asaf Jah II ) wouldn't give up those areas.
So, they created a fear in his mind that all his neighbours like maratha, tamil etc are gaining strength and it would be difficult for a muslim kingdom to survive in middle of hindu domination.
Mir Nizam Ali Khan was offered by British that his army would be trained in modern equipment and methods and for that they need a military base near Hyderabad.
That is how Secunderabad was created and handed over to british. That is why we can see sec'bad under missionary influence and more churches there.
The present cantonment area (alwal) was created by british as military camp and then hyderabad army strength was increased and trained there.
After few years, showing the threat of marathas etc, british increased defence budget of Nizam and dragged his successor too into debt.
When Mir Akbar Ali Khan (Asaf Jah III) was unable to clear debt, they asked him to repay in other means, by selling few of his districts.
This is how coastal andhra was sold to british sarkar (that is why they still call in sarkar districts in cinema distribution terms) and rayalaseema was ceded (given away) in early 19th century.
Those districts were mixed into madras presidency and those ppl got better education (in english and telugu) and flourished.
While telangana districts were forced to learn urdu and deprived of development. This is major reason behind cultural etc differences b/w andhra - telangana that happened over 140 yrs.
Present and Future of Pakistan : Pak army is playing double game by taking financial aid from USA and letting them use their land for setting up military base etc.
In other way, they have USA proxy rule pakistan.
On the other hand, they joined hands with China, expecting that CPEC will be a game changer for them.
China occupied N-E part of J&K to create a land route into Pakistan via POK and then to Gwadar port in Balochistan to bring oil etc through land route into their country.
Now that USSR is broken into pieces for long time and Russian economy is weaker, USA assumes that China is their main competitor and is planning to monitor its naval movements.
This is why they are getting closer with India, so that Bay of Bengal and east coast ports can be used for this purpose.
Pak is expecting help from 2 enemies (usa and china) at same time which will not happen.
One will hit them hard for sure.
USA knows that china can be next super power, so they want to block every possible way of their expansion.
This is one reason they wont let CPEC happen.
Another is Baloch freedom movement .
This baloch movement will not succeed because by its leaders as they live abroad and offer no moral support to locals who are fighting pak army.
No country ever got independence if its leaders are not present on ground.
But if next USA president thinks pak is a headache for them and is helping china in growing, then they will interfere and break it.
(India cannot do this, it has to be a western country).
If CPEC is blocked, china will hit pakistan.
Either way Pak army has put its land under risk between 2 big countries.
One of them are going to break it.
The same mistake of Asaf Jahi in Hyderabad is happening in Islamabad.