US Airways CEO Doug Parker says everyone knows a merger between US Airways and American Airlines makes sense.

Now he’s making sure the public sees things the same way. In a speech at the National Press Club in Washington, D.C., Parker outlined why US Airways and American Airlines should merge.

“We’ve taken a long, hard look at American, and we know that together we can build the greatest airline in the world,” Parker said. “An airline that can compete more effectively with the networks of United, Delta and others.”

Parker’s speech is the latest move in a very proactive campaign to bring about a merger with American Airlines . The US Airways CEO has already secured agreements with three the largest AMR unions to have new contracts if the two airlines come together.

Parker said, “Their support is not driven by short term gains, but rather by the fact they have taken the time to study the long term strategic underpinnings of each plan.”

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