file any necessary responsive or defensive pleadings in opposition to any motion, claim, adversary proceeding, or other pleading made by any Person # objecting to or otherwise seeking the disallowance of the claims of Aegis with respect to the Aegis Debt, including without limitation any claims secured by the Collateral as provided in this Agreement, or # challenging the enforceability or validity of any term or provision of this Agreement, including without limitation the provisions of this Agreement relating to the relative rights of Aegis and the ​-District Creditors to the allocation of payments and recoveries payable on account of the Pari Passu Debt (including from the Collateral and the proceeds thereof);

file any necessary responsive or defensive pleadings in opposition to any motion, claim, adversary proceeding, or other pleading made by any Person # objecting to or otherwise seeking the disallowance of the claims of ​-District Creditors with respect to the ​-District Debt, including without limitation any claims secured by the Collateral as provided in this Agreement, or # challenging the enforceability or validity of any term or provision of this Agreement, including without limitation the provisions of this Agreement relating to the relative rights of Aegis and the ​-District Creditors to the allocation of payments and recoveries payable on account of the Pari Passu Debt (including from the Collateral and the proceeds thereof);