why were british troops sent into northern ireland in 1969?

i went to the shop i History Coursework Task One
Christopher Nicol

“From a study of the site and the other sources explain how accurate you think the painting of Hastings Tower is?”

Source A shows the painting of the tower and it does not match the description in source B. for example source B says “The tower is 24.7m (90 foot) high but the top three metres contains the battlements that had been lost”. This was visible to me from my visit to the site. Also source E shows a more accurate image of the Hastings tower and again I was able to see this clearly from my visit.

From a study of the site and other sources we can see that the painting of Hastings tower is not very accurate.
In source A, the painting of Hastings tower shows that that there is a concealed roof on top of the tower but, when I went on my visit to Ashby castle I could see that the roof was square and...