Complex sentence: Sakr's appointment as Ambassador to Ottawa in 2005 came following a period when Syrian-Canadian relations were upgraded and expanded, against a background of foreign policy dynamics which in each country are profoundly marked and constrained by the specificities of its internal communities.
Split into simpler sentences: Sakr's appointment as Ambassador to Ottawa in 2005 came following a period when Syrian-Canadian relations were being upgraded and expanded. This is against a background of foreign policy dynamics which in each country are profoundly marked and constrained by the specificities of its internal communities.