Dnald Trump Jr has been mocked for comparing the plight of fallen US soldiers to the business "sacrifices" made by his family.

Neither Mr Trump nor any of his children have served in the military.

In his new book Triggered: How the Left Thrives on Hate and Wants to Silence Us, Mr Trump Jr describes visiting the US war cemetery where 400,000 ex-soldiers lie outside of Washington DC on the eve of his father's inauguration.

President Trump has been criticised for getting a doctor to diagnose him with bone spurs allowing him to avoid military service during the Vietnam War.

In the 1990s Mr Trump called his effort to avoid sexually transmitted infections on the New York dating scene "my own personal Vietnam".