This cannot be the United States being the air force for Shia militias, or a Shia on Sunni Arab fight.

President Obama has said that our aspirations should be realistic. We are not going to turn one of the poorest countries in the world, that was plunged into 30 years of war, into an advanced, industrialized, Western-style democracy. What we want to achieve is Afghanistan's capacity to secure and govern itself.

Let's remember that the reason we are there is that we have vital interests in Afghanistan, hugely important national interests, as do the other countries involved.

The question is always how you get the number of troops needed. They do not have to be coalition forces. We also have to expand the training program for the Afghan National Army and the national police, in particular. and Defense Secretary Robert Gates has already announced support for a significant increase in the Afghan army.

Items of interest will be located, identified, monitored, and remotely controlled through technologies such as radio-frequency identification, sensor networks, tiny embedded servers, and energy harvesters - all connected to the next-generation internet using abundant, low-cost, and high-power computing.

When you enlisted into the armed forces you swore to support and defend a Constitution that did not yet fully apply to you. You chose to endure the same sacrifices as your fellow comrades in arms to preserve the freedom of a land that was not yet fully yours. You accepted that you might have to pay the ultimate price on behalf of a nation to which you did not fully belong. Now, you will officially become citizens of the United States, a country to which each of you has already borne true faith and allegiance in your hearts and your deeds.

I think Putin wants to recreate as much of the Soviet Union as he can through a variety of different means. He's invaded parts of Georgia, took Crimea, southeastern Ukraine, bases in other countries.