Complex sentence: The Secretary of State for Defence announced that the name of the Royal Mercian and Lancastrian Yeomanry would change to "The Scottish and North Irish Yeomanry" and a new Headquarters (HQ) (Lothians and Border Horse) Squadron in Edinburgh.
Split into simpler sentences: The Secretary of State for Defence announced that the name of the Royal Mercian and Lancastrian Yeomanry would change to "The Scottish and North Irish Yeomanry". A new Headquarters (HQ) (Lothians and Border Horse) Squadron will be formed in Edinburgh.