There is no nation that has no concept of ancient historical lands, because no nation has no roots.
For a young nation like Uganda, this is almost all entirely encompassed within the present recognised borders. Indeed, Idi Amin's claim to parts of Kenya would have been invalid, because they were merely expansionist. However, for instance we recognise every single region or island on which were slain Uganda martyrs--be it Namugongo; be it Busoga of Bishop Hannington; be it Ukerewe island of Shergold Smith and CT Wilson--all that is Uganda's historical lands. Ukerewe, at present, is under the Tanzanian flag, but that doesn't nullify the claim Uganda justly has on it.
But for those nations that lived under Ottoman hegemony, it is a bigger question, because they are ancient nations.
The Armenians, for instance. Consider this:
Azerbaijan’s destructive position on Karabakh continues to pose a serious threat to the security in the South Caucasus, Armenian President Serzh Sargsyan said in his speech ...
President Sargsyan specified that the Azerbaijani authorities are unwilling or unable to follow the logic of the conflict settlement.
“Azerbaijan continues its bellicose policy. It unleashes arms race in the region and propagates hatred. The Azerbaijani President publicly declares that Armenians worldwide are Azerbaijan’s enemies and Yerevan that will soon celebrate the 2800th anniversary of its foundation is ancient Azerbaijani land. He announces that the violation of ceasefire is normal as the war has not ended but he forgets who was asking for truce and who was the first to sign the truce,” Serzh Sargsyan stated.
Long have they dwelt in the tents of Kedar! In another place:
In this regard Sargsyan has also assured that in the case of military aggression from Azerbaijan “Armenia will have no other choice but to recognize the Nagorno-Karabakh Republic de jure and to employ all its capabilities to ensure the security of the people of Artsakh.”
The Armenians are stupid now, and weak because they forget God. The oldest Christian nation outside of Africa is here failing to have a good reason to blow away the Azerbaijani genocidaires like smoke before a wind, and to cause them to melt like wax before the banners of the Lord. If they asserted their Christianity, they would know how and why to be secure, and how and why to take back their historical lands. All of historical Armenia, with Nagorno-Karabakh.
The other case, oft-studied, is Israel. If they affirmed the Biblical standard, like they are supposed to, they would be a covenanted nation of presbyterial kahalim based on the Bible. They would know why and how to take back their historical lands. All of historial Judea, with Gaza and both the Jordan's banks.