U.S./U.K. Revolving Commitment means, as to any U.S./U.K. Bank at any time, its obligation to make Revolving Loans to the U.S./U.K. Borrowers under Section 2.1(a) in an aggregate U.S. Dollar Amount not to exceed at any time outstanding the U.S. Dollar amount set forth opposite such Bank's name on the signature pages hereof under the heading "U.S./U.K. Revolving Commitment" or as otherwise established pursuant to Section 10.6, as such amount may be modified from time to time pursuant to the applicable provisions hereof.