You've had your first unofficial look at this year's Call of Duty, now let's see what the official unveiling of Modern Warfare 3 looks like in this brief, but now familiar teaser trailer, "America Under Siege."

There's no gameplay here, just a stylized tease that the war from Call of Duty: Modern Warfare 2 continues in the United States, with a look at a raging battle in the New York City harbor. Locations from Manhattan to Brooklyn are mentioned in the voiceover in this Modern Warfare 3 clip, locations outed by today's extensive leak of Activision's big game.

Some of the key visuals here match the concept art seen in our spoiler-filled breakdown of Modern Warfare 3's single-player campaign.

Robert Bowling, creative strategist at Modern Warfare developer Infinity Ward, says of the MW3 teaser: "Wasn't planned, but you're clearly hyped, so here is the 1st of many Modern Warfare 3 videos coming in hot today!" Earlier today, Bowling commented that "some" of the Modern Warfare 3 information leaked by Kotaku was "still accurate, some not."

For more details about Call of Duty: Modern Warfare 3, read Kotaku's extensive early coverage of the game's setting, story, multiplayer content and much, much more.

Update: Activision released two more trailers for Modern Warfare 3, which can be seen in the gallery above.

In addition to New York City, Modern Warfare 3 features an "Attack On England." Or, 3ngland.

Germany is confirmed on the list of globe-trotting locations in Modern Warfare 3.

And here's France.