If you have an ancestor who serves with the Royal Welch Fusiliers, you may find the following links useful:
The Royal Welch Fusiliers Museum:
https://www.facebook.com/pages/Royal-Welch-Fusiliers-Museum/146060182083938
The RFW 1900 – 1919:
https://www.facebook.com/pages/Royal-Welsh-Fusiliers-1900-1919/581105541933117
1st Battalion RWF at the First Battle of Ypres (October – November 1914) – short video:
https://www.facebook.com/pages/Royal-Welsh-Fusiliers-1900-1919/581105541933117