So? Why do they have to have a link to last week's attacks? Why not just come in through the front door, like the 10,000 that came here last week? Reuters with their usual spin.
If they are terrorists, it's nearly certain that they would be told only about *their* mission, not about other missions that are about to happen on another end of the planet. If the planners are smart, though, the soldiers would be only told to get in, establish a base, and then contact an anonymous handler over the Internet.