It seems to me that from all I've seen of various Star Trek shows, Federation (or Earth) does not seem to have ANY combat military personnel/branches aside from Space Navy (aka StarFleet). No Marines for taking the beach(planet)-heads, no combat armor/infantry for ground combat, no dedicated small fighter-class spacecraft (away shuttles don't count).
I haven't watched any DS9 yet at all so the above impression could be wrong.
Is that really true, or do any of Star Trek shows or movies exhibit existence of non-naval combat military branches, especially as pertaining to ground combat?
If not, is there an in-Universe explanation for their lack?
Books/games are out of scope.
Specialized branches (Judicial, medial, Time Police, Intelligence) are out of scope.
Non-Earth species-specific forces are not really in-scope - I only care either about Earth military or Federation-wide ones.
UPDATE: I'm mostly interested in Federation era, e.g. post-Enterprise timelines.