Two war questions

I have played this game off and on for a few years. I am mostly an economic player and prefer to build up a trading empire as peacfuly as I can. But I am always ready to defend my self if needed.

Since I have not played the war part of the game that much I have two questions on that I have never gotten.

1) What do you use the navy for? Can you transport land forces on a navy ship? How Far can the navy go from home? and how does it attack targets? Can it attack targets of a landlocked country?

2) How do you attack a country that that does not share a boarder with you?

Thanks in advance for the answers

1) The Navy can be used at long range and many weapons are poor at hitting the ships or their missiles. You can take low wl c3's without loosing a solider/weapon using the navy.
2) Either use long range weapons (like the navy) and airdrop SF's to paint, or airdrop air base construction units and air lift land forces in (takes hours this way)