He has spent the past fifteen years researching and writing about security, political, humanitarian, and cultural issues in Pakistan, Afghanistan, and the Pashtun heartland where he was born. In addition to his reporting, Siddique speaks frequently at prominent think tanks in several countries, and has contributed articles, chapters, and research papers to a range of publications. Siddique's unique expertise is brought to bear in “The Pashtun Question: The Unresolved Key to the Future of Pakistan and Afghanistan” book. (London: Hurst and Company, 2014). Abubakar Siddique has been cited by international press, including the Wall Street Journal.