Field Marshal Asim Munir, Pakistan's all-powerful defence chief, is reportedly looking at the toughest test of his expanding stronghold on Islamabad as the United States pushes the South Asian nation to send troops to Gaza. Munir is facing a two-edged sword, as contributing Pakistani troops to the Gaza stabilisation force could spark a domestic backlash, but backing away from the request could annoy US President Donald Trump, according to experts.