public void ObserveUpdate()
{
this._fleet.Subscribe(nameof(BattleFleet.Fleets), this.Update, false).AddTo(this);
this._fleet.Subscribe(nameof(BattleFleet.Name), () => this.RaisePropertyChanged(nameof(this.Name)), false).AddTo(this);
this._fleet.Subscribe(nameof(BattleFleet.Formation), () => this.RaisePropertyChanged(nameof(this.FleetFormation)), false).AddTo(this);
}