I have seen two newspaper photos of Canadian infantry serving in the
greater Kabul region of Afghanistan as part of ISAF/NATO and they have a
national flag shoulder patch and then under that ISAF and then under
that a third patch which appears to have a large Fleur de lys symbol
bracketed
by some letters.   It might be  a regimental symbol.

patch one is Canadian flag.
patch two is the International Security Assistance Force (ISAF)

Q) What is patch three with the fleur de lys?

Hi grthumongous,

In addition to the Canadian Flag, the shoulder badges issued to
Canadian troops assigned to Operation Athena are:

1) International Security Assistance Force (ISAF)
2) Kabul Multi-National Brigade (KMNB)

"Each of the troops was issued a box lunch, a country familiarization
booklet and an ISAF shoulder flash that includes the plain ISAF patch
in English and Arabic and the insignia of the Kabul Multi-National
Brigade with a fleur-de-lis and a cougar head."
http://mypage.uniserve.ca/~echo2/afghanistan2.html

Some photos - notice Cpl Tim Fowler's shoulder flash:
Prime Minister Chrétien's visit to Camp Julien in Kabul:
http://www.canada-afghanistan.gc.ca/pm_visit_afghanistan_pictures-en.asp


BACKGROUND AND CURRENT OPERATIONS

International Security Assistance Force Web Site:
http://www.afnorth.nato.int/ISAF/index.htm

Kabul Multinational Brigade:
"Canada is the lead nation for the Kabul Multinational Brigade, under
the command of Brig Gen Peter Devlin. Of the more than 30 troop
contributing nations, Canada provides 1,200 of the 2,600 total
personnel within the brigade. Under the KMNB are three battle groups,
led by the Germans, the French, and the Canadians. The KMNB is
responsible for the tactical command of the troops on the ground."
http://www.afnorth.nato.int/ISAF/structure/structure_structure.htm

The road to Kabul:
"ISAF was structured into three main components: ISAF headquarters,
the Kabul Multinational Brigade and the Kabul International Airport
task force. The Kabul Multinational Brigade is ISAF?s tactical
headquarters, responsible for the planning and conduct of patrolling
and civil-military cooperation operations on a day-to-day basis. The
United Kingdom provided the core of ISAF?s three components until it
turned over the leadership of the Kabul Multinational Brigade to
Germany in March 2002. These three components have endured through the
successive ISAF rotations to this day."
http://www.nato.int/docu/review/2003/issue2/english/art3.html

Operation ATHENA: The Canadian Forces Participation in ISAF:
The International Security Assistance Force:
http://www.dnd.ca/site/operations/Athena/index_e.asp

Additional Links:

UK Military Patches & Regimental Arm Badges for Sale:
R1M564 International Security Assistance Force Afghanistan ISAF 
On Green Square Woven £6.00
http://www.kellybadge.co.uk/armbadge.htm

Canadian Orders, Decorations and Medals:
http://www.geocities.com/dco700/Canada.htm

Canadian troops work in relatively clean, sound environment, says assessment.
by Stephen Thorne:
http://www.recorder.ca/cp/World/031020/w102035A.html

Canadian to Take Command of Kabul Multi-National Brigade
"ISAF is a UN-sanctioned mission comprising nearly 5,000 soldiers from 29
countries. A subordinate formation of ISAF, KMNB is a robust tactical military
organization designed to assist the Afghan Transitional Authority in its
efforts to create a safer, more secure environment in Kabul. NATO is scheduled
to take over the leadership of the mission from Germany and the Netherlands
later in August."
http://www.newswire.ca/en/releases/archive/July2003/16/c2825.html

CNews: Canadian troops leave for Afghanistan:
"Each of the troops was issued a box lunch, a country familiarization
booklet and an ISAF shoulder flash that includes the plain ISAF patch
in English and Arabic and the insignia of the Kabul Multi-National
Brigade with a fleur-de-lis and a cougar head."
http://cnews.canoe.ca/CNEWS/Canada/2003/07/19/140535-cp.html


If you have any questions, please post a clarification request before
rating my answer. I was happy to find your answer but regret not
finding a better image of the badge (I tried!).

Thank you,
hummer

Google Search Terms Used:

isaf "shoulder flash"
Afghanistan "shoulder flash"
kabul "shoulder flash"
Afghanistan "state flower"
Afghanistan "Fleur de lys" cougar
Afghanistan cougar
Afghanistan "Fleur de lys" 
"operation athena" 
"operation athena" insignia
"operation athena" cougar
"operation athena" Fleur de lys 
Canadian insignias Afghanistan
Canadian "arm badges" kabul
Canadian "arm badges" Afghanistan
kabul "arm badges"
Afghanistan Canadian troops 
Afghanistan Canadian infantry
etc.

Detailed Photo Search:
Operation Athena
http://www.armyimages.forces.gc.ca/English/8_2.asp

Thank you. A top notch answer rendered even more relevant as we come
upon Remembrance/Veterans Day.

Thank you very much, grthumongous, that's very kind of you - and not
to worry, Remembrance Day will not pass unnoticed here.

Sincerely,
hummer