This is the modern age we have a huge nuclear arsenal I have to ask who do you think would dare risk attacking our nation, any such threat would demand they either nuke us making invading useless and likely ending in the annihilation of the world OR if a conventional attack us attacking with nuclear tactical weapons as they come in. We are far more secure than we ever have been in history.
Somolian pirates (I would be simple buy them off say so much per ship paid by the shippers and use them to maintain a counter to the real terrorist Islamic forces there) and terrorism threaten many nations I have no issue being a fair partner but proportional if we put out one unit, I expect China to have one, Russia one, the EU one etc. As for terrorism keep them from getting nukes nothing else is a mortal threat and anyway our CIA should handle that with special forces not our armies. That is why we are in this mess we placed our men and women right where the enemy wants us in their front yard, they are making us burn trillions on security measures and war far over the threat and are winning. We are losing. And no major power wants to see terrorists use a nuke we have ample allies among the world powers that matter.
I disagree for:
1. Weapons of Mass Destruction (Nukes) aren't a good deterrent for small actions. Tell me how that discourages folks from aggression on our citizens. Kidnapping is getting to be the crime of choice in a lot of regions. Lack of control of the sea lanes is making piracy a viable choice of business again. Paying them off will only encourage them, and bring more, like sharks to chummed whater.
2. What special forces? The CIA? Oh, you mean the folks that have been constantly and steadily curtailed by a growing policy of regulating what they can and can't do by the folks in the White House and Congress? Special Warfare action is limited to the movies and video games largely do the the constricting rules of engagement we've steadily put on them over the years. Bad Press upsets politicians. I sincerely doubt anyone in office, or likely to be in office will have the intestinal fortitude to change the rules of engagement to the point where we could deploy the special warfare groups like they do in movie, books and video games. And the CIA is predominantly set up to gather, collate and supply intelligence to the government not kill folks in other countries. (They likewise are curtailed by rules of engagement and anxious politicians.)
3. And if you think a major power would be smart enough to not give the 'bad guys' nukes. Sorry, their politicians are as short sighted as ours. Not to mention with the collapse of the Soviet Union there is tech, and the men who made them, out there for sale. Don't assume your (or our) outlook is the same as those elsewhere. That is a common fallacy of counter intelligence.
4. Just because we crawl back home with our tails between our legs does not mean they'll leave us be. We're open, free and tolerant. That means that we are a threat to the radical elements out there because we're successful, rich and growing while the people they oppress aren't. To the men in control of such places, distance matters little in our rapidly shrinking global community. You, and most of the folk here, are 21st century thinkers. The folks who do acts of terrorism in the Gulf are not. They are bandits and brigands with 21st century gear and an much more primitive and intolerant view of things. To them, we'll always be a threat.