In the year 2024, a few USAF pilots came together and wrote the charta concurrunt fulminis (Paper of Lighting), of which they brought together many scientists, diplomats, USAF and USN personnel to sign this paper, officially creating the Thunder Hawk Initiative. This paper explained the overview of the THI and its purpose. The leader of all of this, Joseph Blitz (my alias), became the first White Hawk, whom is the official leader of the group in entirety (but can not be, or act, like a dictator).

The Thunder Hawk emblem:

The Thunder Hawks are split into three divisions, their leaders and color is also shown:

Militia (Thunder Hawk Initiative Militia; Red Hawk)
Science (Thunder Hawk Research Division; Yellow Hawk)
Diplomacy (Thunder Hawk Global Representation Division; Blue Hawk)

Each of these divisions take care of a different problem in the world (Red = Fight against Terrorism and Oppression (if Diplomacy doesn't work first); Yellow = scientific research and operations that could save humanity from the worst of disasters; Blue = protests and talking in global debates/conferences). Together, they make the shape of a hawk in the emblem. Hopefully, this fixes the world. Or at least helps it.
In the THIM, there are 3 branches, the Thunder Hawk Air-force (THA), the Thunder Hawk Navy (THN), and the Thunder Hawk Ground-force. There is also a branch that works with the THRD, the Thunder Hawk Initiative Militia Experimentals (THIME) division. The Air-force is the strongest and largest, whilst the Ground-force is the weakest. The Navy is somewhere in betwixt the two.

History:

In early 2035 (January-February), the Thunder Hawks separated from the USAF and ended up becoming a Nation-State Militia group for the government (more professionally, a PGM). This allowed funding from the USAF and USN, which greatly increased the monetary power of the THI. The first White Hawk, Joseph Blitz, built 4 main bases around the US: a major port base in Charleston, North Carolina, a major air base in Alcoa, Tennessee, a training base in Akron, Ohio, and finally, a major port in Santa Monica, California.
In the beginning, there were only just under 50 people in the group. By the end of 2025, there were more than 2,000. These numbers continued to grow over the next few months. During mid 2036, a war broke out with [REDACTED] and the US. The X5- Sparrow was made to aide in ground forces and this was the first time the THIM helped any other countries in war.
The Thunder Hawk Initiative is NOT a country on its own, nor does it work strictly for the government. Just a side note.

Flag and Insignias:

(Top left is the flag (inside the white circle is the emblem, it is hard to see), Top right is the defensive insignia for crafts defending a country (has the emblem's colors), Bottom right is the offensive insignia for crafts attacking a country or person (which is why it is the coloration of the flag)

List of all vehicles:

Planes for the future (x series):

X1 Baby Hawk series (Fighter/Interceptor with unique wings)
X2 Blitzabeliter (Stealth Bomber)
X3 Super Hawk (V/STOL Stealth Fighter/Bomber)
X4 The Expeller (Bomber/Fighter; Unique)
X5 Sparrow (Ground Support Aircraft)

Helicopters for the future (y series):

Y1 Vertibird Light (Troop Transport)
Y2 Vertibird Heavy (Cargo and Troop Transport)

Airships for the future (xz series):

XZ1 Hypernova (Unique; Large Airship)
XZ2 Knox Class Ship (4 or 5 Medium Rigid ships)

Warships for the future (z series):

Z1 Falkennest (Hawk's Nest; Aircraft-Battleship, Unique)
Z2 Eagle Class Ship (Battleship)
Z3 Falcon Class Ship (Cruiser)

Submarines for the future (zz series):

ZZ1 Night Hawk (Unique)
ZZ2 Osprey Series (Small attack subs)

Tanks for the future (t series):

T1 Red Poppy series (Mk.V Redesign)

Thunder Hawk Initiative Militia Experimental Craft (xx series)

XX1 Toucan (Hypersonic Ground Support)
XX2 Macaw (Asymmetrical Light Bomber-Fighter)
XX3 Super Macaw (Heavy Fighter/Bomber)
XX4 Moebius (Super Heavy Supersonic Propfan Bomber)
XX5 The Expeller Mk.II (Supersonic Jet based Bomber variant)