The word 'southern' shouldn't be capitalized in a sentence unless it is a proper noun. For example, Southern France is capitalized because it is a proper noun and it is a region in France. Another example, southern star isn't capitalized because it could be referring to any star in the south.
Southerners thought congress should protect their borders.
I believe it should be written "Council member". The term "Security Council" is always capitalized, and as Council is just a contraction of that, it should remain capitalized. However, on a quick scan of the UN website, the 'member' is not capitalized. However, "Council Member" is probably acceptable.
Yes, yes it should
No. It's not necessary.
You have spelled it correctly though it should be capitalized.
The word gauchos is Spanish for cowboys. If you are using it in that sense - "Los gauchos cabalgaban los caballos", or "The cowboys rode the horses" - then no, it does not need to be capitalized.However, Gauchos can also be used to describe a specific group of people from the South American region. In this case, it should be capitalized, just as Southerners is capitalized when speaking of people living in the Southern United States.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
Yes it should always be capitalized.
Yes it should be capitalized.
As an abbreviation it should be capitalized.
No it should not be capitalized.
The first 'c' should be capitalized.
Yes it should be capitalized.
Yes, it should be capitalized.
No. It should not be capitalized.
For places names and proper names, the word "Southern" should be capitalized, but in other contexts, it is not. For example, you would write "the Southern United States," but "the southern way of life," "southern belle," etc.