This semi-academic work on the collapse of Malaysia's Pakatan Harapan government is written from a sectoral security perspective. Its basic idea is derived from my articles published in The New Straits Times from August 2018 to August 2021 which focused on the PH government and its political alliance, their incompatibilities, weaknesses. vulnerabilities and insecurities. This approach enables this book to examine the fall of the PH administration from the perspectives of ideological, political, identity and economic insecurities in the PH era and their ultimate impacts on the PH alliance and the PH government. This approach also enables this book to establish that the rise of the PH government was accompanied by a new political identity which was different from the political identity of the Perikatan-Barisan Nasional government which ruled Malaysia for over six decades since Independence in 1957 These dissimilarities had caused certain Malaysia's citizenry, particularly a section of the Peribumi-Muslim community, to perceive this new political identity as unable to protect their future as Malaysia's biggest national groups and the sons of the soil, as well as the biggest followers of Islam in the PH era. This perception led to the emergence of trust deficit in the PH government and on Bersatu as the only Peribumi-based party in the PH alliance.

1. Political culture ? Malaysia. 2. Political parties ? Malaysia. 3. Malaysia ? Politics and government.