Field Marshal Asim Munir has emerged as Pakistan's most powerful military leader, analysts say, after a constitutional amendment expanded his powers and gave him lifelong rank and immunity.The amendment enacted Thursday consolidates military power under a new role, chief of defence forces, who commands Pakistan's army, navy and air force.It also gives Munir lifelong immunity from criminal proceedings, potentially awarding him unchecked powers.Munir became army chief in November 2022 after serving in senior positions including as quartermaster general and Corps Commander Gujranwala.He was also head of the Military Intelligence and later of Pakistan's powerful spy agency Inter-Services Intelligence.In 2019, he...