According to the charter of the united nations, only the un security council has a mandate by the international community to apply sanctions ( article 41). International sanctions are instigated by her majesty’s treasury (UK); the office of foreign assets control (OFAC) of the US treasury department or the eu.
According to reports, eu sanctions continue to be in place in very poor countries who have been deprived of their assets, such as the Democratic Republic of the Congo and the Central African Republic.
Current sanctions against Syria and Iran are reported to be extremely comprehensive. Documents containing HM treasury notices relating to Syria are listed but not readable. Documents concerning US sanctions of both Syria and Iran include an alert to the possibility of the incurring of sanctions to any parties involved in petroleum shipments. This includes insurers, shipping companies and financial institutions.
In May of this year the eu extended sanctions against Syria until June 2020, but have resisted calls to reimpose sanctions on Iran.
The un has imposed comprehensive sanctions on Iran. An estimated 12 billion US dollars in Iranian assets have been frozen since 1979 when king Mohammad Reza Shah was overthrown. According to history he was a western delegate, but not by choice.
Yemen-related sanctions are reported to take place via executive orders from both the president and congress and are related to blocking assets. There are reports of the torture of political prisoners by US and Saudi forces on the ground.
According to media reports, the un have complained about the latest US sanctions targeting Venezuela. Bolivarianism in Venezuela extolls political and economic sovereignty and the equitable distribution of its vast resources.
According to charities the population of Syria is in need of humanitarian assistance. Protein foods and a clean water supply are a necessity.