Senior officers like Generals usually command military formations.
"Platoon" is capitalized when it is used as part of a proper noun, such as the title of a specific military unit like "Alpha Company, 1st Platoon." Otherwise, it is not capitalized when used generically to refer to a group of soldiers or a military sub-unit.
In a title, only the first word, the last word, and all major words are typically capitalized. Minor words like "and," "or," and "but" are not usually capitalized unless they are the first or last word of the title.
Atheist would be capitalized only if it were part of somebody's name, for example if somebody referred to himself as Atheist Bob. However, in the sentence "I saw that atheist Bob at the bank today," atheist is not capitalized because it's not part of Bob's name.
Yes, because Celtic is a name. Just like American is capitalized, Celtic is capitalized.
If it is used a title in place of a name, then yes. That would be difficult with this word, however, so usually it would be a reference to a position or status. That will not be capitalized. For example, if you say "John is our treasurer" it would not be capitalized. However, if you manged to use it as a name, like "come here, Treasurer," then it should be capitalized.
Island is capitalized when it is part of a proper noun, like in a specific island's name (e.g. Staten Island). Otherwise, it is not usually capitalized as it is a common noun referring to a landmass surrounded by water.
Can and I should be capitalized.
It is capitalized at the beginning of the sentence or when it forms part of the proper noun. Examples: The fire department rescues people. The Boston Fire Department rescues people.
"You like Geography class." Yes, "Geography" should be capitalized as it is a proper noun.
It should look like this: Siamese Cat. It does need to be capitalized.
whyare the words like welfare in the preamble capitalized