Tillerson's effort to cut the USD 55 billion State Department budget by up to a third has been rejected by Congress, mocked in the media and even privately attacked by senior serving diplomats.
But he insists that he is merely trying to contain and manage what had become a historically high spend, while streamlining procedures and building a more effective US diplomatic corps.
There is an element of optimism in his plan too, however, as it seems predicated on the United States finally being able to disentangle itself from long-running wars in Asia and the Middle East.
US forces have been fighting in Afghanistan since 2001 and Iraq since 2003, and thousands of troops have since deployed in growing numbers to pursue Islamist militants in Syria and parts of north and west Africa.
Alongside the larger military footprint, US diplomats have been involved in negotiating ceasefires, maintaining coalitions, promoting peace talks and helping local officials rebuild war-shattered administrations.
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