**Answer:**

The white regime in question refers to the apartheid regime in South Africa, which was characterized by institutionalized racial segregation and discrimination against non-white South Africans. The regime, led by the National Party, implemented apartheid policies in 1948 and faced increasing resistance and protests from various quarters. These protests and struggles eventually led to a change in the policies of the white regime.

**1. Protests and Struggles:**
The primary reason why the white regime decided to change its policies was the increasing protests and struggles against apartheid. The oppressed majority, including black South Africans and their allies, organized and participated in various forms of resistance, such as strikes, boycotts, demonstrations, and civil disobedience. These protests put significant pressure on the regime and drew international attention to the injustices of apartheid.

**2. International Pressure:**
The apartheid regime faced increasing international condemnation and isolation due to its discriminatory policies. Various countries, organizations, and individuals across the globe called for sanctions and boycotts against the regime. The international pressure, both diplomatic and economic, contributed to the decision by the white regime to re-evaluate its policies.

**3. Economic Factors:**
The protests and struggles against apartheid also had economic implications for the white regime. Strikes and boycotts disrupted industries and affected the economy. The regime realized that maintaining apartheid policies would lead to further economic instability and decline. This realization, combined with the international pressure, influenced the decision to change its policies.

**4. Internal Dissent:**
Within South Africa, there were also individuals and groups within the white community who opposed apartheid and advocated for change. Some members of the white regime, including politicians and influential figures, began to question the sustainability and morality of apartheid. Their dissent and calls for reform contributed to the decision to change policies.

**5. Negotiations and Reforms:**
Amidst the increasing protests and international pressure, the white regime initiated negotiations with prominent anti-apartheid leaders, such as Nelson Mandela and the African National Congress (ANC). These negotiations led to a series of reforms, including the unbanning of political organizations, the release of political prisoners, and the eventual dismantling of apartheid.

In conclusion, the white regime decided to change its policies primarily due to the increasing protests and struggles against apartheid, international pressure, economic factors, internal dissent, and negotiations with anti-apartheid leaders. These factors collectively forced the regime to reassess its discriminatory policies and seek a more inclusive and equitable approach.