Okay, so here's an early draft for a timeline. Thanks due to those above.
2779 29 Sep Having secured control of Unity City, the SLDF moves to secure the Imperial City, hidden in Central Canada. Kerensky himself leads the attack on the palace gates. With his last soldiers surrendering, Stefan Amaris finally emerges from his apartment, holding the same pistol he used to kill Richard Cameron. Placing the muzzle against his head he pulls the trigger - and the remote attachment linked to nuclear warheads buried beneath the complex. Amaris, Kerensky, DeChavilier and a host of other SLDF leaders vanish in sea of nuclear explosions that consumes entire brigades of BattleMechs.
2779 30 Sep Admiral Joan Brandt takes provisional command of the SLDF.
2780 4 Jul Having convened on Terra, the Star League Council appoint Jerome Blake as Minister of Communications. Admiral Brandt, exhausted, formally lays down command of the SLDF and retires so that they can appoint a new Commanding General. Debate on this, and the election of a new Minister of the BSLA and of course of a new First Star Lord, begins.
2780 19 Jul A confrontation between SLDF soldiers frustrated at the Council's slowness and captive RWA soldiers explodes into violence. SLDF soldiers sent to restore order fracture between those trying to separate the groups and those that pour fire into the rioting prisoners. The breakdown in SLDF discipline also exposes a fracture between hardliners and moderates in their ranks.
2780 23 Jul On the proposal of Barbara Liao, the SL Council votes to handover the captive RWA soldiers - now more than seven thousand fewer in number - into the custody of the armed forces of the Member-States. Ostensibly this is so the SLDF can focus on the remaining Amaris hold-outs in the Hegemony, but in practise the new guards are effectively recruiters and Rim Worlds veterans are quickly disappearing onto secure transports out of the Hegemony.
2780 26 Jul Seeing the SL resolution as a sign that the Lords are nearing some consensus fourteen SLDF Corps commanders seek an audience and request the appointment of new Commanding General to oversee the remaining operations of the campaign to liberate the Hegemony and to help restore order - as it stands the broken chain of command mean that they can't carry out the proper disciplinary procedures for the massacre of the prisoners. It becomes apparent the Council are fractured on who should replace Kerensky with Minoru Kurita even being so bold as to state he wishes to bring in an officer of the DCMS.
2780 2 Aug Recruiters from the individual Council Lords begin approaching SLDF officers for their supprt in the appointment of their lords and masters to the seat of First Lord.
2780 10 Oct With fractures forming in the informal High Command of Army Commanders and Department Heads that is leading the SLDF, a delegation visit Joan Brandt on New Earth asking her to return to office as Commanding General. She declines.
2780 17 Nov With the sponsorship of Kenyon Marik, Patrick Scoffins - commander of the Amaris Empire Armed Forces and now liberated - begins forming up new regiments to establish a new Rim Republic as a province of the Free Worlds League.
2780 26 Dec On the fourteenth anniversary of the Amaris Coup, forty-nine regiments of Royal Command declare that they're transferring their loyalties from the SLDF to a revived Hegemony Armed Forces and offer Jerome Blake the title of Director-General.
2780 27 Dec Kenyon Marik orders the nearest available SLDF divisions to put down the mutiny. The SLDF officers balk until John Davion and Robert Steiner confirm the order (Minoru Kurita adds his consent later, Barbara Liao remains silent on the matter).
2781 3 Jan Additional Royal regiments move to support their brethern against the SLDF regulars, expanding the scope of the conflict. Minoru Kurita departs Terra in secret.
2781 7 Jan Barbara Liao orders seven Division commanders she considers 'reliable' to consolidate their forces along the Hegemony-Confederation border and departs Terra accompanied by a squadron of six SLDF warships including one of their precious Newgrange yardships. The fracturing of the SLDF becomes public.
2781 8 Jan John Davion and Kenyon Marik depart Terra.
2781 19 Jan Elements of the new Hegemony Armed Forces manage to launch a suprise attack on the SLDF High Command, their advanced BattleMechs punching through to devestate the command centre. Robert Steiner, visiting the command centre, is killed in the crossfire.
2781 23 Jan Herve and Nigel Polczyk escape custody of a LCAF-run prison camp at the head of a substantial number of hold-outs. They run headlong into an SLDF regiment with a large minority of recruits from the Rim Worlds who shelter them.
2781 14 Feb SLDF 'loyalists' aboard SLS James McKenna carry out an orbital bombardment of Jerome Blake's HQ at Hilton Head even though the Minister of Communications has been careful not to declare himself. The battleship is shortly engaged by the battlecruiser SLS Admiral Gerda Cameron and battleship SLS Prinz Eugen but manages to break away and reach a jump-point.
2781 21 Mar Having won over a number of key officers, the Polcyzk brothers lead a flotilla away from Terra, carrying a ragtag of regiments and several freighters loaded with supplies on towards their goal of recovering the outer reaches of the Rim Republic for themselves as a new home.