Afghanistan was the primary country that initially did not accept Pakistan.
Afghanistan's opposition stemmed from several factors:
- Territorial Claims: Afghanistan laid claim to territories in northwestern Pakistan, viewing them as historically part of Afghanistan.
- Successor State Dispute: Afghanistan disputed Pakistan's legitimacy as the sole successor state to British India, particularly regarding the Pashtun regions.
- Vote Against UNO Admission: As a demonstration of its stance, Afghanistan voted against Pakistan's admission to the United Nations Organisation (UNO) in September 1947.
While other countries might have harbored reservations or taken time to fully recognize Pakistan, Afghanistan's outright opposition and territorial claims make it the most accurate answer to the question. This initial rejection marked the beginning of a complex and sometimes strained relationship between the two nations.
