Panther Squad
Active:	13 March 2173 CE - 9 June 2183 CE
Organization:	Systems Alliance
Affiliation:	Systems Alliance Marine Corps
Branch:	45th Infantry Company
Type:	Squad
Role:	Planetary garrison
Size:	12 troops
Headquarters:	Colony Euphoria, Eden Prime
Nickname(s):	P Squad
Engagements:	Eden Prime War Battle of Eden Prime
Commanders:	Sgt. Henry Pehren (2177 CE - 2183 CE)
Notable:	Henry Pehren †

Panther Squad was a Systems Alliance Marine Corps combat unit attached to the 45th Infantry Company of the 212th Planetary Defense Group and commanded by Sergeant Henry Pehren. The unit was formed with the rest of the 45th Infantry Company on 13 March 2173 CE from elements of Marine Corps garrisons previously stationed on Sirona, Ferris Fields, Terra Nova, Mars and Shanxi and assigned to Colony Euphoria on Eden Prime as part of the 212th PDG, which was seen as "hell for the unaccomplished" by those who were part of it, largely due to the lack of action and exorbitant amount of free-time marines stationed there had. Panther Squad consisted of 12 marines, and was tasked with supplementing the Eden Prime Colonial Guard in the event of a slaver attack. On 7 June 2183 CE, the commanding officer of the 45th Infantry Company, Lieutenant Michael Falstaff, gathered the company to assist in providing a security detail for a recently discovered prothean beacon on the planet, with Panther Squad tasked with securing a perimeter until Council authorities could arrive to retrieve the prothean artifact. While the other three squads were redeployed at the last minute, Panther, along with Bravo Squad, were ordered to protect the scientists as they continued to extract the beacon from the dig site, with Major Salvatore Mankins of the 212th PDG, Falstaff and Stephen Banner of Dog Squad staying behind to oversee the operation.

In the early hours on the 9th of June 2183 CE, a large geth heretic offensive led by Saren Arterius hit the planet and took the Alliance ground forces by surprise, as they did not recognize their attackers and did not know what to do to combat them. While Bravo Squad was sent ahead to secure a path to the spaceport, Panther Squad remained behind to oversee transport of the beacon itself, with Mankins wanting to get the beacon offworld as soon as possible. When contact was lost with Bravo Squad, Panther established defensive positions in preparation for the geth assault, but it proved futile. Just as preparations were completed to begin moving the beacon, geth troops swarmed over the camp, overwhelming Panther Squad and resulting in their deaths, along with Falstaff, Mankins and Banner.