Those countries would be:-

Two countries where free and fair elections are not held are:

1. North Korea:
North Korea is known for its totalitarian regime and lack of political freedoms. The country is ruled by the Kim dynasty, with Kim Jong-un as the current leader. The country's elections are highly controlled and manipulated, with only one political party, the Workers' Party of Korea, being allowed to participate. The elections are mainly for show and aimed at maintaining the regime's grip on power rather than allowing genuine democratic processes.

- No political competition: The ruling party dominates all aspects of political life in North Korea. Opposition parties are not allowed, and any dissent is severely repressed. As a result, there is no real political competition or choice for the citizens.

- Lack of transparency: The electoral process in North Korea lacks transparency and is highly controlled by the ruling regime. The candidates are often handpicked by the government, and citizens have no real say in the selection process. The voting is not secret, and citizens are closely monitored, which further undermines the integrity of the elections.

- Limited suffrage: The right to vote is limited, and only a select group of individuals who are loyal to the regime are allowed to participate. The elections serve as a means to legitimize the ruling party's power rather than representing the will of the people.

2. Zimbabwe:
Zimbabwe has a history of flawed elections and political repression under the rule of Robert Mugabe and his party, the Zimbabwe African National Union-Patriotic Front (ZANU-PF). Although there have been some changes in recent years, the country still faces challenges in conducting free and fair elections.

- Political violence and intimidation: Elections in Zimbabwe have been marred by political violence and intimidation tactics used by the ruling party against opposition parties and supporters. This creates an atmosphere of fear and hinders the ability of citizens to freely express their political preferences.

- Manipulation of electoral processes: The electoral processes in Zimbabwe have been plagued by allegations of manipulation, including voter suppression, gerrymandering, and biased media coverage. The ruling party has been accused of using state resources to gain an unfair advantage and maintain its grip on power.

- Lack of independence of electoral institutions: The independence of electoral institutions, such as the Zimbabwe Electoral Commission, has been questioned. There have been concerns about their impartiality and ability to conduct elections in a fair and transparent manner.

In conclusion, North Korea and Zimbabwe are two countries where free and fair elections are not held. The lack of political competition, limited suffrage, and manipulation of electoral processes undermine the integrity of the elections in these countries.