Defense budget experts are expressing skepticism in light of two new initiatives President Obama recently announced would be part of the Defense Department's upcoming wartime supplemental budget request: $5 billion for counterterrorism operations in Africa and another $1 billion to bolster U.S. military presence in Europe. Most experts estimate that the supplemental budget, known as the overseas contingency operations (OCO) fund, will be somewhere between $50 billion and $70 billion when it is finally submitted this summer, though Congress is...