us. citizenship or green card

what is easier to get an us citizenship or green card?Can an person from an other country try to become an american citizenship right away? Does this person have to wait 7 years before he qualifies to be citizen? Does this person have to have green card first?

what is easier to get an us citizenship or green card?Can an person from an other country try to become an american citizenship right away? Does this person have to wait 7 years before he qualifies to be citizen? Does this person have to have green card first?

First you get a greencard, then you apply for citizenship. It's like you can't get to college without going through highschool.