Chandler 1995, p. 328 The Baltic was dominated by Russia, a situation with which Britain was uncomfortable as the region provided valuable commodities like timber, tar, and hemp, crucial supplies to Britain's Empire. Additionally, Britain supported the Ottoman Empire against Russian incursions towards the Mediterranean. Meanwhile, French territorial rearrangements in Germany occurred without Russian consultation and Napoleon's annexations in the Po valley increasingly strained relations between the two. Chandler, David G. (1995) [1966]. The Campaigns of Napoleon. New York: Simon & Schuster. ISBN0-02-523660-1.
Chandler 1995, p. 679 At midnight on 16 April, Berthier wrote to Napoleon: "In this position of affairs, I greatly desire the arrival of your Majesty, in order to avoid the orders and countermands which circumstances as well as the directives and instructions of your Majesty necessary entail." Chandler, David G. (1995) [1966]. The Campaigns of Napoleon. New York: Simon & Schuster. ISBN0-02-523660-1.