The great national emergency of 2019 is now four days old, and the government's response to it is as of yet without a plan. When the Russian asset in the Oval Office announced it last Friday in a long and terrifying word salad, it came without any specifics. It still has no specifics, and that's concerning to a lot of people who are likely to be the ones losing the $6.6 billion Trump is demanding be shifted to fund the wall from the Pentagon and Treasury Department.
Members of Congress who have military bases in their states want to know if that $3.6 billion the Pentagon has to cough up is going to come from military construction projects—a third of the $10.3 billion appropriated for this fiscal year. One of them, Virginia Democratic Sen. Tim Kaine, has written to the Pentagon demanding it provide him with "a list of all projects affected […] an assessment of the risk to servicemembers if these projects are terminated," and the "potential for legal action due to breach of contract." He also points out that last year, in April, the Pentagon testified to Congress that it had a $116 billion maintenance backlog, and that "23 percent of the department's facilities are in poor condition, [and] another 9 percent are in failing condition." So the Pentagon said it needed $116 billion and got less than a tenth of that, and now a third of it is going to be siphoned off.
Those needs include construction projects for both Camp Lejeune for the Marines in North Carolina and Tyndall Air Force Base in Florida, two major bases that were significantly damaged by hurricanes last year. So far, Congress hasn't appropriated the money to repair that damage, or for emergency funding in general for Georgia and Florida. The House passed a $12.1 billion emergency aid bill last month, which Majority Leader Mitch McConnell hasn't bothered yet to bring to the Senate floor. Camp Lejeune alone needs $3.5 billion for repairs after last fall's Hurricane Florence, its commander said, and Tyndall needs $3 billion after Hurricane Michael.
Trump certainly didn't spend any time thinking about where his wall money is going to come from. As far as he's concerned, the entire federal treasury is a slush fund he gets to play with. If that means that troops and their families have to live in squalor, that's fine by him.