New Delhi, Sept. 11 -- Anything can happen once United States (US) President Donald Trump gets active in diplomacy's china shop. The developments over the US-Taliban deal, ironically revealed by Trump himself in a number of tweets on September 7, once again illustrate the bewildering, if not the chaotic, manner in which the US presently conducts its foreign policy. Indeed, Trump's Afghanistan policy is a case study in unpredictability.

In order to attempt discerning what Trump may do next, it may be useful to consider his instinctive approaches to the US involvement in Afghanistan. Trump was against continuing US military engagement in Afghanistan prior to his election. He wanted the US forces to leave the country. On becoming president, h...