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William L. Shirer, The Rise and Fall of the Third Reich
Today, I expect that the Lodz Group of Polish divisions no longer exists as a cohesive fighting force, having been crushed by German 8th and 10th Armies. 10th Army panzer and motorized units are probably running free in the Polish rear areas while the infantry mops up.
The Modlin Group, badly battered by Kuechler’s 3rd Army operating out of East Prussia, is ready to make it’s stand on the Narew but by tomorrow will also be destroyed as an effective fighting formation.
The divisions of Poznana Group and surviving parts of Pomorze Group are already looking to concentrate in the area between the Vistuala and Bzura Rivers.
On both sides, there must already be a sense that the Germans have the upper hand, and the campaign’s outcome is not in doubt.
The TK (TK-3) and TKS were Polish tankettes during the Second World War.
"The 575 TK/TKS tankettes formed the bulk of the Polish armoured forces before the outbreak of war. They suffered heavy losses during the Invasion of Poland, often being the only armoured fighting vehicles available. Due to their light armament of a single machine gun, they stood no chance in combat against German tanks, except the Panzer I, but their small size suited them for reconnaissance and infantry support. Only the handful of tankettes armed with 20 mm guns had a fighting chance against the enemy tanks; in one instance on 18 September 1939 a 20 mm gunned TKS commanded by sergeant Roman Orlik destroyed three German Panzerkampfwagen 35(t) tanks."
The Hotchkiss H35 or Char léger modèle 1935 H was a French light tank developed prior to World War II -- 11 met tons, crew: 2.
"Three Hotchkiss tanks of the "H 39" version had been exported to Poland in July of 1939 for testing by the Polish Bureau of Technical Studies of Armoured Weapons (pl. Biuro Badań Technicznych Broni Pancernych). During the Invasion of Poland in 1939 the Hotchkiss tanks together with three Renault R 35 tanks were incorporated into in an ad hoc "half company" unit of lieutenant J.Jakubowicz formed on 14 September 1939 in Kiwerce, Poland. The unit joined the task force "Dubno" and lost all of its tanks during the marches and fighting with German and Soviet armies and Ukrainian insurgents."