Berlin, OKH, May 16th
The meeting held in the OKH was attended by Keitel, Jodl, Halder, Brauchitsch, General Thomas, General Warlimont, von Paulus, as well as operational commanders of the former Army Groups A, B and C, von Leeb, von Bock and von Rundstedt. The Luftwaffe was represented by Jeschonnek as the Chief of OHL. Head of Fremde Heere Ost was also present, representing Abwehr.
Punctually at 08:00, Brauchitsch started the meeting by reading the statement from Goering in which the President stipulated the strategic objective of the plan they were working on - namely, to defeat the Soviet Union on its western borders and remove the threat of direct invasion of the territory of Germany or her East European allies by the Soviet armed forces. Goering authorized Brauchitsch to take all steps necessary to secure this objective by employing all the military forces of the Wehrmacht and in cooperation with the German allies.
Thus he opened a discussion, which lasted until lunch time, with refreshments and food brought in and with aides and clerical staff bringing maps and estimates from various departments.
By the end of the day, all present agreed on the plan to engage the Red Army in North, through East Prussia, preferably drawing the Soviet forces to attack and defeating them in detail and South in cooperation with Romanian and Hungarian allies, thus outflanking the Red Army positions in the central part of the front, threatening them with encirclement and annihilation.
Fremde Heere Ost highlighted the possible role of Ukrainian insurgents in engaging the Soviet forces throughout the Ukraine and possibility of carving out an independent Ukrainian state, governed by a regime sharing the German ideological view.
Besides, Fremde Heere Ost report pointed out that the Baltic states were not, in fact, occupied but merely garrisoned by the limited number of Red Army forces deployed to a few bases. The report suggested that, in principle, it should be possible to advance through the three buffer states rapidly, expel the Red Army and establish advanced positions near Leningrad and threaten the entire length of the central front with a massive flanking attack. Provided, of course, that sufficient number of divisions were available. The logistic constraints in Baltic countries were few, the railway gauge was the same, unlike mainland Soviet Union and resupply would be possible from the Baltic Sea.
Von Paulus, in his role of quartermaster of the Heer had little to add. He merely expressed grave doubts of logistic sustainability of a deep penetration into Soviet territory. Backed by the report from his staff, he recommended the initial advance be no deeper than 200 km, to be followed by another staged advance once the situation was favorable. While it was possible to deploy up to two armies to East Prussia, tasked with the initial advance, and expand it by another army consisting of three to four corps, it would be very difficult to deploy more than one army to the Romanian front. The primary limitation here was the availability of the railways.
By dinner time, von Brauchitsch called the end, ordered the aide who kept notes of the meeting to draft a summary and present it to him and the others in the morning and dismissed the exhausted officers. They were to reconvene at 1000h the following morning and give final remarks to the draft conclusion. Colonel Lossberg of the OKW was tasked with making an initial study along the lines discussed on the meeting and present it in a week.
The meeting also touched the issue of deployment of forces to Turkey, but that was deemed unfeasible at this stage. OKL offered to prepare deployment of a single Fliegerkorps to Turkey, but indicated it would take up to a month before they reached full efficiency.
Meanwhile, in Moscow, von Schulenburg handed a note containing an ultimatum to Molotov. In it, the German government demanded the Soviet Union to cease with unwarranted aggression against the Republic of Turkey and Kingdom of Romania, withdraw the forces from their territories within 48 hours or face grave consequences.
Same day, London
Foreign Office was the first to receive any notice of German intentions. And they received it directly from the German ambassador, no less. Lord Halifax read the note, trying to control his emotions. As soon as he finished rereading it, he thanked the ambassador and immediately set off to Downing Street 10, to discuss it with the Prime Minister.
Soviet advances
In the meantime, the Red Army continued its march into Iran, reaching the city of Marand. The city was the first large urban settlement in the border region and advance elements of the Red Army encountered stiff resistance from the regiment of Iran Army. The vanguard retreated from contact and after clumsily executed attempt to outflank the Iranians, settled in order to await artillery support. A cavalry battalion conducted reconnaissance in force in order to determine where the Iranian lines were. Although suffering casualties in this attempt, the battalion returned and reported that the Iranian regiment held firmly inside the buildings and houses and would require a deliberate assault to drive them out and capture the town.
The cavalry then proceeded to the east and avoided the city, in order to continue to the south. Facing no opposition, the troopers advanced through a wooded area steadily and by nightfall reached another town. They stopped there to await the infantry.
Soviet advance into Turkey faced stiff opposition, supported by naval fire from the pair of Italian cruisers, that steamed hastily across the Black Sea. Although the Soviet advance was stopped along its right flank, their left flank managed to crush the light Turkish forces and outflank the Turkish defenders, who retreated in order to avoid encirclement. As the Red Army advanced further, the entire front came into range of naval fire and an Italian battleship joined the naval support. The Turkish army deployed their sole mechanized formation to this front and the situation was temporarily stabilized, at least until the Soviets brought the artillery.
Red Army advance into southern direction came to a halt as they encountered very difficult terrain and ambushes the Turks laid in every passage. Their losses steadily mounted and at night the Soviet formations were frequently sniped at from all directions by lone Turkish troops. The Turks also faced problems in their rear areas as the Red Air Force dropped NKVD teams with weapons and supplies and incited the Kurd guerillas to rebel and engage the Turkish units in the rear areas. The combat was ferocious and no side felt entirely secure. Soviet cavalry roamed in the countryside, while the Turkish units systematically raided village after village of the Kurds and deported all inhabitants to the internment camps on the Mediterranean coast. The Kurds, on the other hand, led by their Soviet handlers, stroke randomly at Turkish units marching from the western Turkey and mining railroads and roads leading to the battle area.