https://en.wikipedia.org/wiki/Assyria
> Tukulti-Ninurta I's assassination c. 1207 BC was followed by inter-dynastic conflict and a significant drop in Assyrian power.[62] Tukulti-Ninurta I's successors were unable to maintain Assyrian power and Assyria became increasingly restricted to just the Assyrian heartland,[62] a period of decline broadly coinciding with the Late Bronze Age collapse.[62] Though some kings in this period of decline, such as Ashur-dan I (r. c. 1178–1133 BC), Ashur-resh-ishi I (r. 1132–1115 BC) and Tiglath-Pileser I (r. 1114–1076 BC) worked to reverse the decline and made significant conquests,[63] their conquests were ephemeral and shaky, quickly lost again.[64] From the time of Eriba-Adad II (r. 1056–1054 BC) onward, Assyrian decline intensified.[65]
https://en.m.wikipedia.org/wiki/Middle_Assyrian_Empire
>Though Assyria was left largely unscathed by the direct effects of the Late Bronze Age collapse of the 12th century BC, the Middle Assyrian Empire began to experience a significant period of decline roughly at the same time. The assassination of Tukulti-Ninurta I c. 1207 BC led to inter-dynastic conflict and a significant drop in Assyrian power. Even during its period of decline, Middle Assyrian kings continued to be assertive geopolitically; both Ashur-dan I (r. c. 1178–1133 BC) and Ashur-resh-ishi I (r. 1132–1115 BC) campaigned against Babylonia. Under Ashur-resh-ishi I's son and successor Tiglath-Pileser I (r. 1114–1076 BC), the Middle Assyrian Empire experienced a period of resurgence, owing to wide-ranging campaigns and conquests.
https://luwianstudies.org/the-initial-sea-peoples-raids/
https://en.m.wikipedia.org/wiki/Hittites#New_Kingdom