Complex sentence: This only exacerbated his mistrust of Britain and its supporters in the government, and together with some of his pro-Axis colleagues, Gaylani made plans to assassinate Regent Abdul-Illah and seize power.
Split into simpler sentences: This only exacerbated his mistrust of Britain and its supporters in the government. Together with some of his pro-Axis colleagues, Gaylani made plans to assassinate Regent Abdul-Illah and seize power.