The Air Force is requesting $522 million for 22,137 JDAMs (which stands for Joint Defense Attack Munitions). The Navy wants $155 million for 6,620 of them. In the previous two years, both services together spent a bit less than $1.5 billion for 68,198 of the munitions, many of which were used in the Iraq war. This does not include similar sums spent for other types of "smart bombs." For more on the subject, click here.