Sebrenskiyan-Ostlandic Border Crisis
| Sebrenskiyan-Ostlandic Border Crisis | |||||||
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| Belligerents | |||||||
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Supported by Template:Country data Vihoslavia |
 Ostland | ||||||
| Casualties and losses | |||||||
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Dozens of soldiers 1 MiG-21 several riverine warfare boats |
Dozens of soldiers 6 river transport craft several riverine warfare boats 1 civilian airliner 1 Leopard 1 | ||||||
The Sebrenskiyan-Ostlandic Border Crisis is an ongoing border conflict and potential flashpoint for military combat in Casaterra.
Background
Pan-Septentrion War
In 1943, Sebrenskiya joined Sieuxerr, Vihoslavia, New Tyran, and Sylva in the war against Ostland and Kerenevoi.
By the time of the declaration of war, Vihoslavia had already pushed Ostland back to its borders, Saintonge had surrendered, and the two remaining Axis states in Casaterra were crumbling under the weight of the assaults in play. Sebrenskiya's declaration of war opened a new front against Ostland, who had begun to pull troops away from the Sebrenskiyan border to deal with the closing Sieuxerrans and Vihoslavians.
By 1944, the writing was on the wall for Ostland. Upon the introduction of the year, the fierce defence that was in place by the Ostlandians was shattered, with Sebrenskiyan and Vihoslavian forces closing in on the Ostlandic capital of Krossa. By April, Krossa had fallen to the Northern Casaterran forces. and the ultimatum was delivered: Surrender unconditionally to the allied powers, cede total control of the waterways on the Sebrenskiyan-Ostlandic border to Sebrenskiya, or face complete destruction.
The Ostlandians initially refused - so the allies dramatically increased strategic bombing patterns, and the combined Casaterran attackers continued to push deeper into Ostland. A desperate Ostlandian government declared it would accept the surrender terms - so long as it could use the waterways again in a decade.
With Dayashina appearing to require a total conquest of the islands to surrender, the Casaterran allies were looking for any way to end the war in Casaterra quickly. Pressure from Tir Glas, New Tyran, and Sieuxerr forced the Sebrenskiyans to agree to the Ostlandian terms.
Conflict with Vihoslavia
~~tbd~~
Return of waterways
In 1954, Ostland launched transport craft into the waterways on the border, to speed up trade between portions of Ostland. Sebrenskiya, however, sank four of the boats within just a few months of the launches. Ostland issued protests, claiming that by treaty that Ostland was permitted to use the waterways.
Sebrenskiya responded, declaring that the Federal Republic of Ostland was not the successor of the state which had signed the treaty, and the treaty was voided by the succession of government. The Sebrenskiyan President argued that the voiding of the treaty and the lack of valid successor allowed it to retain total control of the waterways, as the status quo would be preserved in such an incident. The Ostlandian Foreign Ministry argued that if this were the case that Sebrenskiya believed, then the two states should negotiate a new treaty. Sebrenskiya declined to negotiate and sank another transport ship.
Initial escalation
Ostland did not retreat from its usage of the waterways, but instead began to arm transport boats with Ostlandian soldiers. It also commissioned several riverine warfare craft to counter ten years of Sebrenskiyan dominance of the waterways. Ostlandian soldiers successfully used a rocket launcher to sink a Sebrenskiyan riverine boat early in 1955. Sebrenskiya cried foul and threatened war over the attack.
In retribution over the attack, Sebrenskiyan infantry stormed a border post the south of Miravci, and executed the civilian officers within it. Ostland, fearing invasion, called for assistance from Hallia and prepared to mobilize its military. Several skirmishes launched between the two states, with infantry exchanging fire in limited engagements. Hallia threatened war with Sebrenskiya, declaring its neutrality in the border conflict but stating that directly invading Ostland would initiate security protocols from the state.
1960s
As small skirmishes continued between infantry, the waterways were a strategic impasse militarily. Boats were allowed to safely pass through as both sides feared initiating a water conflict that would shut down the waterways. However, in a high profile case in Sebrenskiya, an Ostlandian citizen was executed for "federal trasspassing", which wasn't a law in Sebrenskiya's book. A riverboat from Ostland opened fire 22 minutes after the announcement of the cases' conclusion on a Sebrenskiyan riverboat. The boat was sunk, but the Ostlandian riverboat was heavily damaged by a retaliation strike by an infantry squadron nearby.
1964 and 1965 saw a stark increase in skirmishes between the two states, but they died down in 1966.
1970s
In 1972, Sebrenskiya shot down Ostlandian Airlines 4718. Sebrenskiyan forces proudly claimed they shot down an Ostlandian transport aircraft within minutes of the shooting, but soon Sebrenskiyan media fell silent on the incident. In a somber messaged delivered by then state-owned Sebrenskiya Federal Times, the President of Sebrenskiya declared "deep sorrow", after an investigation of the crash site found that it was a civilian airliner it had shot down.
Ostlandians were enranged by "blatant disregard of life", as declared by the Ostlandian Foriegn Ministry. Per Sebrenskiyan claims, "multiple" Ostlandian fighter aircraft deliberately penetrated the airspace over the city of Pliska, and shot down the aircraft sent to respond to them. Sebrenskiya claims that the Ostlandian fighters were intended to drop bombs on Pliska, but Ostland claims that the aircraft never entered Sebrenskiyan airspace.