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Relations_NN2 between_II China_NP1 and_CC the_AT U._NP1 S._NP1 have_VH0 undergone_VVN many_DA2 difficult_JJ periods_NN2 ._. 
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This_DD1 is_VBZ due_II21 to_II22 fundamental_JJ differences_NN2 in_II the_AT Chinese_JJ and_CC American_JJ world-view_NN1 ,_, particularly_RR at_II the_AT philosophical_JJ and_CC political_JJ levels_NN2 ._. 
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However_RR ,_, recent_JJ years_NNT2 have_VH0 seen_VVN progress_NN1 (_( albeit_CS with_IW setbacks_NN2 )_) in_II Sino-American_JJ bilateral_JJ relations_NN2 ._. 
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China_NP1 is_VBZ the_AT world_NN1 's_GE oldest_JJT existing_JJ civilization_NN1 ._. 
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<s>
It_PPH1 dates_VVZ its_APPGE origins_NN2 to_II the_AT mysterious_JJ Xia_NP1 and_CC Shang_VV0 dynasties_NN2 ,_, life_NN1 philosophy_NN1 to_II the_AT Zhou_NP1 dynasty_NN1 ,_, and_CC actual_JJ political_JJ state_NN1 to_II the_AT Qin_NN1 dynasty_NN1 ._. 
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<s>
Confucianism_NN1 is_VBZ the_AT primary_JJ guide_NN1 for_IF etiquette_NN1 and_CC inter-personal_JJ relations_NN2 ,_, while_CS Legalism_NN1 ,_, coupled_VVN with_IW Marxism-Socialism_NP1 in_II modern_JJ China_NP1 ,_, forms_VVZ the_AT basis_NN1 of_IO political_JJ administration_NN1 ._. 
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China_NP1 embraces_VVZ the_AT notion_NN1 that_CST nation-states_NN2 have_VH0 ultimate_JJ sovereignty_NN1 over_II their_APPGE internal_JJ matters_NN2 ._. 
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America_NP1 ,_, by_II contrast_NN1 ,_, is_VBZ a_AT1 new_JJ nation_NN1 (_( founded_VVN in_II 1776_MC )_) ._. 
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<s>
It_PPH1 is_VBZ based_VVN on_II the_AT principle_NN1 of_IO popular_JJ government_NN1 and_CC toleration_NN1 of_IO minority_NN1 opinions_NN2 ,_, while_CS presupposing_VVG its_APPGE citizens_NN2 have_VH0 certain_JJ inalienable_JJ rights_NN2 ._. 
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<s>
America_NP1 accepts_VVZ the_AT principle_NN1 of_IO national_JJ sovereignty_NN1 ,_, but_CCB believes_VVZ the_AT modern_JJ world_NN1 to_TO be_VBI inter-dependent_JJ and_CC international_JJ ._. 
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In_II other_JJ words_NN2 ,_, many_DA2 events_NN2 by_II nature_NN1 influence_VV0 more_DAR than_CSN one_MC1 nation_NN1 ._. 
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Such_DA differences_NN2 have_VH0 resulted_VVN in_II numerous_JJ incidents_NN2 of_IO strained_JJ Sino-U_JJ ._. 
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<s>
S._NP1 relations_NN2 ._. 
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<s>
China_NP1 often_RR feels_VVZ that_CST America_NP1 interferes_VVZ in_II its_APPGE affairs_NN2 ,_, while_CS America_NP1 states_VVZ its_APPGE actions_NN2 promote_VV0 peace_NN1 and_CC stability_NN1 in_II the_AT world_NN1 ._. 
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<s>
Despite_II differences_NN2 ,_, China-America_NP1 relations_NN2 are_VBR improving_VVG ._. 
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<s>
This_DD1 is_VBZ because_II21 of_II22 ever_RR decreasing_JJ amounts_NN2 of_IO ideology_NN1 combined_VVN with_IW increasing_JJ desire_NN1 for_IF business_NN1 ._. 
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