While Peacekeepers engage enemy infantry, Javelin soldiers fire missiles against enemy vehicles and aircraft. Javelin Soldiers are the replacement for the Guardian GI, which was lost from the Allied arsenal due to Cherdenko changing the time stream. Although not as armored as their shotgun wielding counterparts, the Peacekeeper, they are much more effective against tanks and are capable of engaging aircraft, something the Peacekeepers have no claim to. Together, the two form the core of Allied infantry divisions.