[1] In the 1990s, Robertson covered the breakup of Yugoslavia as a producer and reported from Baghdad, Iraq, during the First Gulf War.

[1] He reported from Iraq in 2002 and early 2003 in the lead-up to the invasion of Iraq by the United States; from New Orleans in 2005 in the aftermath of Hurricane Katrina; from Beirut in 2006 during the Israel-Lebanon crisis; and from Norway in the aftermath of the 2011 massacre perpetrated by Anders Behring Breivik.

In 2024, Robertson was accused by Al Jazeera of knowingly publishing false information related to the 2023 Israel-Hamas war.

[3][4] Robertson's 2002 Peabody Award was for Terror on Tape, his reporting on al-Qaeda training videos in Afghanistan.

[1] Robertson's documentary World's Untold Stories: Secrets of the Belfast Project, which revealed new evidence on Sinn Féin-IRA connections, won a Foreign Press Association Member Award.