Douglas wrote...
Neither was the germans but they did start world war two.
The germans didn't build battleships before after the war broke out, they was limited to cruisers they outfitted with heavy guns and heavy armor to be a substitute for a battleship, which was allowed as long as the ship was kept under a certain tonnage.
Most space ships in ME is build on space platforms (or at least assembled) as heavy ships like cruisers and dreadnaughts can't land on planets with a "normal" gravity.
In orbit around Tuchanka, there are several space stations manned by Council Forces, most likely Turians who uphold a very strict arms embargo on Tuchanka with enforcers routinely boarding any ship inbound for Tuchanka, even diplomat ships. Personal firearms are allowed to be flown in, but anything that could be used in ship manufactering is considered a grave offense and the punishment is usually "death by spacing".
So no, the Krogans are not going to build space ships in the near future.