Complex sentence: About 450 British soldiers from 2nd Battalion, The Scots Guards and Staffordshire Regiment (elements of the 24th Infantry Brigade) responded, surrounded the First Battalion barracks at Jinja, seized the armory, and quelled the mutiny.
Split into simpler sentences: About 450 British soldiers from the 2nd Battalion, The Scots Guards and Staffordshire Regiment (elements of the 24th Infantry Brigade) responded. They surrounded the First Battalion barracks at Jinja, seized the armory, and quelled the mutiny.